河南成教 / 微积分
正确率：100%
2[单选题]
<p><img src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/20170306142113475001.png" _ewebeditor_pa_src="/Content/Scripts/ewebeditor10/uploadfile/20170306142113475001.png" border="0"><br><br></p>
A.a
B.b
C.c
D.d
<p><img src="http://www.jxjypt.cn/Content/Scripts/ewebeditor10/uploadfile/20170306142113475001.png" _ewebeditor_pa_src="/Content/Scripts/ewebeditor10/uploadfile/20170306142113475001.png" border="0"><br><br></p>
参考答案：
佳题速递：