问题
选择题
Once a computer is put into water, the system _______ and cannot repair itself.
A．breaks down
B．breaks through
C．breaks out
D．breaks up
答案
答案：A
考察break的词组。Break down 分解，瓦解 ，崩溃 break through 突破 break out 爆发 break up 打碎，结束
句意为，一旦一个电脑被放入水中，系统就会崩溃，无法修复