When I asked him how he was doing, he before telling me that he had just lost his job.
查看答案
Once a very shy boy from a small mountainous village, he a competent engineer in a matter of six years.
The newspaper refused to the facts the public.
As we sat on the beach the sunshine, she started to tell me her childhood stories.
平面与平面立体相交，其截交线为（ ）
A. 平面多边形
B. 圆
C. 不一定
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