福师《近世代数》在线作业二 -0005

adminhan

n阶方阵集合对于矩阵加法构成（）
A:半群
B:群
C:环
D:域

<IMG SRC="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/fsteacher9/20060930/401ee4c5.GIF"></IMG>
A:A
B:B
C:C
D:D

<font face="Arial">题面见图片<img alt="" src="http://file.open.com.cn/ItemDB/11179/782fe2d2-9205-4688-b320-6161126a1c21/2008114162259746.JPG" /></font>
A:A
B:B
C:C
D:D

<IMG SRC="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/fsteacher9/20060930/4f399d80.GIF"></IMG>
A:A
B:B
C:C
D:D

<font face="Arial">题面见图片<img height="105" alt="" width="601" src="http://file.open.com.cn/ItemDB/11179/8e00d9b7-02be-43a6-95a9-f0eb3f5fee89/20081141620460.JPG" /></font>
A:A
B:B
C:C
D:D

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/3a04fd0c.GIF" />
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/3093d3d9.GIF" />。
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/5762e699.GIF" />
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/cd9e952d.GIF" />。
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/fd61363e.GIF" />。
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/8ca7ae07.GIF" />
A:错误
B:正确

<p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/8ca7ae07.GIF" /></p><p>。</p>
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/f3c7eb53.GIF" />。
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/b8ddef7d.GIF" />，
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/3a04fd0c.GIF" />。
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/f08edea9.GIF" />
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/9cd27399.GIF" />。
A:错误
B:正确

<p>&nbsp;题见下图：</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/1cc2502f.GIF" /></p>
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/56c84596.GIF" />。
A:错误
B:正确

<font face="Arial">题面见图片<img alt="" src="http://file.open.com.cn/ItemDB/11179/8e26a103-bf65-4138-974f-9cf9c5affe32/200811416255873.JPG" /></font>
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/c8af4fae.GIF" />
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/91332872.GIF" />
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/30f4bf85.GIF" />。
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/91332872.GIF" />。
A:错误
B:正确

.<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/3b3bbf94.GIF" />
A:错误
B:正确

<p>题见下图：</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/47d30c75.GIF" /></p>
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/f834e892.GIF" />。
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/463bd041.GIF" />
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/69d401d7.GIF" />。
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/0ae06b3d.GIF" />。
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/45609d34.GIF" />。
A:错误
B:正确

.<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/a5e97189.GIF" />
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/1f36fe61.GIF" />、
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/f4064a46.GIF" />
A:错误
B:正确

<p>题见下图：</p><p>&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/c475803b.GIF" /></p>
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/e5b5507b.GIF" />。
A:错误
B:正确

<p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/68235292.GIF" /></p><p>。</p><p>&nbsp;</p><p>&nbsp;</p>
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/5be76374.GIF" />.。
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/2c7c327a.GIF" />。
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/c7d7cac5.GIF" />
A:错误
B:正确

<font face="Arial">题面见图片<img alt="" src="http://file.open.com.cn/ItemDB/11179/65575f77-582f-4cfe-a6ed-e4527888fe84/2008114162925884.JPG" /></font>
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/deba522f.GIF" />
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/bb04a85d.GIF" />。
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20061013/401ee4c5.GIF" />。
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/a2f23836.GIF" />
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/eb64ae2f.GIF" />。
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/78b3db4b.GIF" />
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/71579621.GIF" />.
A:错误
B:正确

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/acdb2816.GIF" />。
A:错误
B:正确

&nbsp;<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/judge/fsteacher9/20060930/25d3cf6b.GIF" />
A:错误
B:正确