题目内容：

we can use a short -wave radio to (A) voa english programmes 为什么
A pick up
B pick out
C take up
D join up

优质解答

我们可以用一台短波收音机接收英语节目.
give up接收,抬起
pick out挑选
take up 占据(时间,空间)
join up 连接起来