In the middle of the night, we signals for help from another ship.A. picked outB. picked u

In the middle of the night, we signals for help from another ship.
A. picked out
B. picked up
C. picked on
D. picked at

A. picked out(答案→)B. picked up C. picked onD. picked at解析：. pick up=receive(从无线电里)接收到或听到。此外，还有“拾起，收拾、用汽车接或搭载某人、廉价买到、取或得到、好转，改善(become better; improve)、重新开始，继续(start again; continue)、偶然结识、通过实践学会、染(病)、打听到(消息)、发现(find)、逮捕(罪犯)、站起来、振作起来(pick oneself up)、责备某人”等。

和我的回答一样，看来我也对了