河南成教 / 高等数学Ⅰ
正确率：100%
3、
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; TEXT-INDENT: 21pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Calibri; FONT-SIZE: 10.5pt; tab-stops: 158.25pt 212.65pt 233.9pt 333.15pt 455.25pt"><span style="FONT-FAMILY: 宋体">设</span><img style="VERTICAL-ALIGN: middle" width="14" height="14" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638916001.gif"><span style="FONT-FAMILY: 宋体">为取逆时针方向的圆周</span><img style="VERTICAL-ALIGN: middle" width="81" height="23" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638819002.gif"><span style="FONT-FAMILY: 宋体">，则</span><img style="VERTICAL-ALIGN: middle" width="230" height="29" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638650003.gif"><span> </span><span style="FONT-FAMILY: 宋体">（ </span><span style="FONT-FAMILY: 宋体">）</span></p>
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; TEXT-INDENT: 21pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Calibri; FONT-SIZE: 10.5pt; tab-stops: 158.25pt 212.65pt 233.9pt 333.15pt 455.25pt"><span>A</span><span style="FONT-FAMILY: 宋体">．</span><img style="VERTICAL-ALIGN: middle" width="29" height="17" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638320004.gif"><span><span> </span>B</span><span style="FONT-FAMILY: 宋体">．</span><img style="VERTICAL-ALIGN: middle" width="37" height="17" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638668005.gif"><span><span> </span>C</span><span style="FONT-FAMILY: 宋体">．</span><img style="VERTICAL-ALIGN: middle" width="46" height="17" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638636006.gif"><span><span> </span>D</span><span style="FONT-FAMILY: 宋体">．</span><img style="VERTICAL-ALIGN: middle" width="35" height="17" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638544007.gif"></p>
A.A
B.B
C.C
D.D
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; TEXT-INDENT: 21pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Calibri; FONT-SIZE: 10.5pt; tab-stops: 158.25pt 212.65pt 233.9pt 333.15pt 455.25pt"><span style="FONT-FAMILY: 宋体">设</span><img style="VERTICAL-ALIGN: middle" width="14" height="14" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638916001.gif"><span style="FONT-FAMILY: 宋体">为取逆时针方向的圆周</span><img style="VERTICAL-ALIGN: middle" width="81" height="23" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638819002.gif"><span style="FONT-FAMILY: 宋体">，则</span><img style="VERTICAL-ALIGN: middle" width="230" height="29" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638650003.gif"><span> </span><span style="FONT-FAMILY: 宋体">（ </span><span style="FONT-FAMILY: 宋体">）</span></p>
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; TEXT-INDENT: 21pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Calibri; FONT-SIZE: 10.5pt; tab-stops: 158.25pt 212.65pt 233.9pt 333.15pt 455.25pt"><span>A</span><span style="FONT-FAMILY: 宋体">．</span><img style="VERTICAL-ALIGN: middle" width="29" height="17" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638320004.gif"><span><span> </span>B</span><span style="FONT-FAMILY: 宋体">．</span><img style="VERTICAL-ALIGN: middle" width="37" height="17" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638668005.gif"><span><span> </span>C</span><span style="FONT-FAMILY: 宋体">．</span><img style="VERTICAL-ALIGN: middle" width="46" height="17" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638636006.gif"><span><span> </span>D</span><span style="FONT-FAMILY: 宋体">．</span><img style="VERTICAL-ALIGN: middle" width="35" height="17" src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/exam/201302/20130226100638544007.gif"></p>
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