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A:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/QGNM/2018/1206/PIymkxvQGNM20181206111410628.png?Expires=3436226056&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=15Ur43s4re2hNPjblKk5SwgJm4I%3D" title="图片.png" alt="图片.png">
B:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/OKPC/2018/1206/PIsbjliOKPC20181206111433659.png?Expires=3436226076&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=kHSJenapcv%2B7d%2F6pe65XFgLUs2s%3D" title="图片.png" alt="图片.png">
C:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/JJTC/2018/1206/PIpdcmcJJTC20181206111448681.png?Expires=3436226092&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=OZei2J0gVKmCrQAbt0mU7gZREEQ%3D" title="图片.png" alt="图片.png">
D:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/IIGO/2018/1206/PInavgrIIGO20181206111501930.png?Expires=3436226104&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HF%2BWgPvgC884uQSlal03WEXrRy8%3D" title="图片.png" alt="图片.png">
下列函数有界的是（ ）
A:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/EEBS/2018/1205/PIjnjlgEEBS20181205152145460.png?Expires=3436154508&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=AsSNvS%2Buvomc4iWjhZKrMprkcSU%3D" title="图片.png" alt="图片.png">
B:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/IACU/2018/1205/PIsvdwaIACU20181205152158267.png?Expires=3436154523&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zrH1pBKO7Un4sI8IY4m4%2FrGwajA%3D" title="图片.png" alt="图片.png">
C:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/KGIA/2018/1205/PIpziubKGIA20181205152211409.png?Expires=3436154534&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=y5A8hRmcwmpQ6OnY0lj5v89STsA%3D" title="图片.png" alt="图片.png">
D:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/JETM/2018/1205/PIeeqikJETM20181205152220995.png?Expires=3436154544&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Ue2RnhDNPENIKUBIuEdlJQq3aT4%3D" title="图片.png" alt="图片.png">
<p><span style="font-size: 14px; font-family: 微软雅黑, 'Microsoft YaHei';">已知点（1,3）为曲线<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIavbwnTEMP20160910022544715.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png">的拐点，则a,b分别等于( )</span></p>
A:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">1,2</span><br></p>
B:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">1,-1</span><br></p>
C:<p><img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIgucksTEMP20160910022722447.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></p>
D:<p><img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIwytlpTEMP20160910022736480.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></p>
<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/GEEB/2018/1205/PIujhapGEEB20181205153747315.png?Expires=3436155471&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7fK47KcloCDbkJQQtabpxa0B5pE%3D" title="图片.png" alt="图片.png">
A:∞
B:-∞
C:0
D:+∞
下列求极限问题中能够使用洛必达法则的是（ ）
A:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/YBQW/2018/1206/PIsgcuhYBQW20181206145146077.png?Expires=3436239109&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=lEQXB0pnnmSviOCWqS5DbEo2hIA%3D" title="图片.png" alt="图片.png">
B:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/HLSV/2018/1206/PIjvibsHLSV20181206145156815.png?Expires=3436239121&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=hyELhcESIDT1LFUSjorrJlnRkCU%3D" title="图片.png" alt="图片.png">
C:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/YSAM/2018/1206/PIrhhdaYSAM20181206145204744.png?Expires=3436239126&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=9%2FrTjgXiXuuXkmc%2BWH2mH%2BtIUbY%3D" title="图片.png" alt="图片.png">
D:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/YUFG/2018/1206/PIapxzjYUFG20181206145218697.png?Expires=3436239141&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=t%2BZT%2Fytu%2B9snw0gP5EUBkj9RamI%3D" title="图片.png" alt="图片.png">
<p><span style="font-size:14px;font-family:宋体">设<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIhywgbTEMP20160910015033021.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span><span style="font-size:14px;font-family:宋体"></span><span style="font-size:14px;font-family:宋体">在<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIkabdcTEMP20160910015042951.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span><span style="font-size:14px;font-family:宋体">上连续，且<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIjqngeTEMP20160910015052887.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span><span style="font-size:14px;font-family:宋体">，则下列结论错误的是</span></p>
A:<p><span style="font-size:14px;font-family:宋体">至少存在一点<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIulcmkTEMP20160910015124817.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span><span style="font-size:14px;font-family:宋体">使得<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIyrmqzTEMP20160910015142323.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span></p>
B:<p><span style="font-size:14px;font-family:宋体">至少存在一点<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIxuigyTEMP20160910015209922.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span><span style="font-size:14px;font-family:宋体">使得<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIpniwxTEMP20160910015222211.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span></p>
C:<p><span style="font-size:14px;font-family:宋体">至少存在一点<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIayvmsTEMP20160910015242397.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span><span style="font-size:14px;font-family:宋体">使得<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIzskiiTEMP20160910015253744.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span></p>
D:<p><span style="font-size:14px;font-family:宋体">至少存在一点<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIllcrhTEMP20160910015311913.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span><span style="font-size:14px;font-family:宋体">使得<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIkmeigTEMP20160910015328734.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span></p>
<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">已知<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIicrprTEMP20160910010955740.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png">（）</span><br></p>
A:<p><img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {3} {2}"></p>
B:<p><img class="kfformula" src="data:image/png;base64,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" data-latex="-\frac {3} {2}"></p>
C:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">1</span><br></p>
D:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">-1</span><br></p>
<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/OKOM/2018/1206/PIulrzkOKOM20181206152037465.png?Expires=3436240841&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GW86gUUpDq3EqYcvzPefM%2FcTqU4%3D" title="图片.png" alt="图片.png">
A:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/FOVN/2018/1206/PIxghitFOVN20181206152051866.png?Expires=3436240858&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=gPtM5%2F0HvT0Y%2B%2BquZpIw3BQGwdo%3D" title="图片.png" alt="图片.png">
B:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/EDAK/2018/1206/PIqsbyqEDAK20181206152104310.png?Expires=3436240866&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=CnWzGJhoSlwJSgXh3nS8u6b7lzM%3D" title="图片.png" alt="图片.png">
C:<img src="http://ccm2cdn.open.com.cn/zyglpt/PI/XAFS/2018/1206/PIhsxngXAFS20181206152112300.png?Expires=3436240876&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2BrpFXUB7kuntF1kHxu8VW2OTiSQ%3D" title="图片.png" alt="图片.png">
D:<p><img src="http://ccm2cdn.open.com.cn/zyglpt/PI/RBUB/2018/1206/PIuontnRBUB20181206152256619.png?Expires=3436240980&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=KiyJntCEMzt4Ru%2FXIEqaTE2cg2k%3D" title="图片.png" alt="图片.png"></p>
<p><span style="font-size: 16px; font-family: 微软雅黑, 'Microsoft YaHei';">函数<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIdegagTEMP20160910021818151.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png">的极值为（ ）</span></p>
A:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">0</span><br></p>
B:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">1</span><br></p>
C:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">-1</span><br></p>
D:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">2</span><br></p>
<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">设<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIbrnzyTEMP20160910115705449.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png">在<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIisvlzTEMP20160910115720889.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png">处连续，且<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIitytsTEMP20160910115737959.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png">，则<img src="http://oapi.open.com.cn/api/core/file/gofile.do?id=PIctzjiTEMP20160910115830938.png&appkey=5da97a028134420c84123474e7e59e93" title="blob.png" alt="blob.png"></span></p>
A:<p><img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {3} {2}"></p>
B:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">1</span><br></p>
C:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">3</span><br></p>
D:<p><span style="font-family: 微软雅黑, 'Microsoft YaHei';">0</span><br></p>
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发表于 2020-8-8 19:06:12
