井下排水系统中,()应及时清理,每年雨季前必须清理1次。
A.水仓
B.沉淀池
C.水沟
D.水管
参考答案:A, B, C
The price of this computer is the _____ of the three.
A.highest
B.Biggest
C.smallest
D.tallest
— I think saving water is more important than recycling paper in our daily life.
— I disagree. Recycling paper is saving water.
A.the same as
B.so important as
C.as important as
D.the most important