若闭区域D是http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/9e4d1834630049c787fbcb3b59509483.png，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/7696c26836f44aba95e65c05b4d0656f.png（ ）
举一反三
- 若闭区域D是http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/f16b673127264dfd87608ab79fbfe852.png，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/32f7a29a467445c19b50441c90bcbfe4.png（ ）
- 若闭区域D是http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/409deafa464242a8a95ba2b805eee4cf.png，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/85c5301941e145c49941afb3fa9433ff.png（ ）<br>
- 若闭区域D是由抛物线http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/c2cce6ef434d42d1846dd63f086bd9c2.png及直线http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/71edcde95b7b408bb8275833b1187e4f.png所围成的闭区域，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/14ac0a7fff9c4ba1ad9a342140b961cf.png（ ）<br>
- 设http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/5f9f81d9a1184c2eb383cb81ebbe2768.png，若http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/410a0d9f8b4a4f82a6818a45f4a3b450.png，http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/637f75734cb849caa773da5377f55f5e.png，http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/29aefd40f6c54e788587a2115dd02467.png，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/631634fcf7854ec88eedede14de7c1de.png之间的大小顺序为（ ）<br>
- 若闭区域D是圆环形闭区域http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/c4ef4d68f8a4496398c315b51270acc0.png，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/7ae9f8af8d07477cb9064e55d55465bd.png（ ）<br>