If the machine should( ),call this number immediately

题目

If the machine should( ),call this number immediately
A break down B set out C put on D go up

答案

break down
毁掉, 制服, 压倒, 停顿, 倒塌, 中止, 垮掉, 分解
set out
开始 规划 出发
put on
穿 戴上
go up
上升,爆炸,进步,增长
所以选A