——Must we stay in the classroom and finish all the homework?——No, you______. You can take it home.
A:needn't
B:may not
C:mustn't
D:can't
物体做自由落体运动的过程中,下列说法正确的是( )
一艘油轮从波斯湾出发,取近至大西洋,依次经过的海峡是( )