题目内容

34.You are asked to participate in the training program(immediate)_____________before the beginning of thevacation.

查看答案

搜索结果不匹配？点我反馈

更多问题

35.A young man who hasn't got a high school diploma may have difficulty in(get)______a good job.

平面与立体相交，所得的交线称为。

当截平面倾斜于圆柱轴线与圆柱侧面相交时，所得的截交线形状为_________。

用垂直于圆柱轴线的平面截切该圆柱，所得的截交线形状为。