急流附近产生晴空湍流的概率要比一般对流层中、上部低得多。
参考答案：错
解析：急流附近产生晴空湍流的概率要比一般对流层中、上部高得多。
It is considered by some people that to pay to see a movie will be foolish you can see it on TV for nothing.
A．where
B．when
C．however
D．that
用户一般认为水的味道好时，饮用水中溶解性总固体的浓度低于（）。
A.600mg/L
B.800mg/L
C.1000mg/L
D.1200mg/L
E.5000mg/L
