矿山老空区的积水和淤泥,往往会对()产生危害。
A.施工中的井筒
B.矿井井下
C.工业广场或生活区
D.矿井地面生产
参考答案:B
Will you help me to look for an important paper I left in my office this morning as soon as you _______?
A.arrived
B.arrive
C.will arrive
D.would arrive
绿色饭店,顾名思义,就是指在绿树丛中的饭店。