船舶在大风浪中顺浪航行时,为避免出现尾淹或打横现象,应果断釆取()的措施。
A. 只能改向变速无效
B. 改变航向和改变船速
C. 只能变速改向无效
D. 只能减速不能增速
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I should not turn my back ___ him now that he's ill and poor, because he has always been kind ___ me.
A. on; for
B. on; to
C. to; for
D. against; to
The house is dark; the Turners ___ to bed.
A.should go
B.should have gone
C.must go
D.must have gone
He is off to Paris again tomorrow. He tells me that, with this journey, he ___ there and back twenty times.
A.will be
B.will have been
C.will go
D.will have gone
The studies show that the driver who has consumed an amount of alcohol within the limit is likely to have an automobile accident ___ than the driver who does not take any alcohol.
A.not so
B.not much
C.no less
D.no more