如图所示，平面Q是（）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/f64165122ca44db88f2ec5c80c118ab9.jpg
举一反三
- 如图所示，平面Q是（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/f64165122ca44db88f2ec5c80c118ab9.jpg
- 如图所示，平面Q是（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/f64165122ca44db88f2ec5c80c118ab9.jpg
- 下图所示序列f(k)闭合表示式为http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/e3088842d7014311aa5241014415b8f3.bmp
- 如主视图所示，三棱锥被截切，俯视图和左视图正确的是（ ）。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/f6dde245be3a4ac286b637f07e1484fc.png"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/04ae2221fc904cc1ac1caca4daaa8ab1.png"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/e451d56ab1524240b603f2fa47aad33b.png"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/0550413aeb5b436c88589bf8de2029af.png">
- 如图所示，直线AB为（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/dfb1565b2fb44cc1aef33f674923a401.jpg