机墩或风罩与发电机楼板的连接方式有()、()、()三种。
参考答案:整体、简支、分离
——What ___ I wear for the party this evening, darling?
——It's a formal dinner.
A.shall
B.can
C.may
D.must
2,3,13,175,( )
A.30625 B.30651 C.30759 D.30952