单项选择题

Passage Two
Questions 29 to 31 are based on the passage you have just heard.

A．It can make a car lighter.
B．It can make a car faster.
C．It can reduce the cost of a silencer.
D．It can improve the performance of a silencer.
<上一题 目录 下一题>
热门 试题

单项选择题
C
单项选择题
A．Direct the driver.B．Look ahead to see where there’s a turn.C．Move to the back seat if feeling uncomfortable.D．Keep looking at the map to find a place to go to.
A．Direct the driver.
B．Look ahead to see where there’s a turn.
C．Move to the back seat if feeling uncomfortable.
D．Keep looking at the map to find a place to go to.
相关试题