低于静水压力梯度时称为()
A、超压异常
B、低压异常
C、正常压力
参考答案:B
— Bill, if it doesn’t rain, we can go straight on and spend more time in Vienna.—__________ I just want to hear Mozart.
A.Well done!
B.No problem
C.That’s great!
D.That’s it.
地形陡峭、水土容易流失的地方,发展的农业部门应是( )
A.种植业
B.林业
C.牧业
D.渔业