曲线 与直线所围成的图形绕X轴旋转所产生的立体的体积（ ） A. B. C. D.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/31832307cf1f49a1b20dbd274ac23cf7.png
举一反三
- 曲线与直线 所围成的图形的面积（ ） A. B. C.1 D.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/fa032c6358424c7b9f6dad9454c88af1.png
- 曲线http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/ff00d2a6024a4eb692728483bd85cdd3.png与直线http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/4b70093572ea48ee9c4eb46bc8b3e33f.png 所围成的图形绕x轴旋转所产生的立体的体积（ ）<span style="font-family: 宋体; font-size: 14px;</span><br>
- 曲线与x轴所围成的图形的面积可表示为（ ）https://image.zhihuishu.com/zhs/onlineexam/ueditor/201911/47164e270aee44e1bc292b7393cff903.png
- 下面哪个图形是分流阀的图形符号： A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/4a427ac6ca3a451d88b23ac3bd534502.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/bef6c57a0c1c4d6bbfc50082f7edfe14.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/750259c8aa1c4efdb338873df39ffe24.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/5d511af88d8349f1bcf5e8ae6d7b1d09.png" />
- 下面哪个图形是单向节流阀的图形符号： A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/a6a8cd2754284a2dbbb22ed1164736bc.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/d1dca210876d4d9baa6077b41097b205.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/4a5e042e639c49b8a1c3284a5eff710c.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/7590faf536564e61a311aa76c9807fc3.png" />