单项选择题

The fire extinguisher uses a chemical ______ rather than water.

A．foam
B．foil
C．fraud
D．fuse
<上一题 目录 下一题>
热门 试题

单项选择题
The magician picked several persons ______ from the audience and asked them to help him with the performance.
A．by accident
B．on occasion
C．at random
D．on an average
单项选择题
The company had huge debts and was on the ______ of collapse.
A．brink
B．blaze
C．braise
D．blink
相关试题