设http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/d6dde9bc7b6c4305bb6bece9138ceb03.png是连续函数，则二次积分http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/c6646b6be98f410a869ece0ba01c0ba1.png（ ）
举一反三
- 设http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/1bd7547996a1490b95321fae3647dfb1.png是连续函数，交换二次积分的次序：http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/1b9e962296664676bdc8fb3603776fbe.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>
- 设积分区域D由http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/0c9ae1ed54164a58bd49dd327b8b9613.png和http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/106bacc400de4a258c3c2cc1e88f5e50.png围成，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/533bf3bfe8d7439fbe2689a974be1cf1.png（ ）<br>
- 设函数http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/2483d32f49ee48579b3a0f795ffeb08e.png，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/a038cd64e1d845ebb5779107a4d344a1.png（ ）
- 求函数http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/c7a245151812467d85af7a1cf91a4be0.png在点http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/917120f5d9354f20ad871d7acfc759d1.png处全微分，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/63eafd5e56d84117ba59026b91c8059e.png（ ）<br>