要根据零件表面粗糙度的实际情况选择采用何种规格的光切显微镜。( )
参考答案：错
电影院共有1400个座位。东风小学共有31个班，平均每班有43人，请问这些同学都去看电影，电影院还有多少个空座位？
If you _______nature and do things at the wrong time of year, you will have to do more work and the results will not be so good.
A．go after
B．go away with
C．go in for
D．go against
