下列属于地面排水设施的是()。
A.跌水
B.急流槽
C.暗沟
D.蒸发池
参考答案:A, B, D
简述哪些情况可以代扣员工工资?
Sam enjoys ______ stamps. And now he has 226 of them. [ ]
A. to collect
B. collected
C. collects
D. collecting