通常地铁车站站台的形式多采用( )。
A.岛式
B.侧式
C.岛、侧混合式
D.马蹄式
参考答案:A
当风向与流向呈()夹角时,河面上掀起的风浪较大。
A、0度
B、60度
C、90度
D、180度
The place was flooded ________ it had been raining for several weeks.[ ]
A. because
B. because of
C. ever since
D. as a result of