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We( )the radio signals for help from the ship.
A.pick up
B.pick at
C.pick off
D.pick out
B.pick at
C.pick off
D.pick out
参考答案
参考解析
解析：考查动词短语辨析。句意：我们收到船上的无线电求救信号。pickup“接收(信号或声音)；学会；获得；开车接送”，pick at “挑毛病，指责”，pick off“摘下；选择(目标)射击”，pick out“挑选；辨认出”。根据radio signals (无线电信号)可知，答案为A。
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