单项选择题

Questions 23 to 25 are based on the conversation you have just heard.

A．People can spray coniine oxide on their car engines easily.
B．The material works as a pollution filter.
C．The material saves fuel for it reflects back the heat of burning fuel.
D．When burnt, the material will save fuel.
<上一题 目录 下一题>
热门 试题

单项选择题
A．They could find more wild animals then.B．The grass becomes yellow which is more beautiful.C．There would be no mosquito stinging them.D．There would be fewer insects.
A．They could find more wild animals then.
B．The grass becomes yellow which is more beautiful.
C．There would be no mosquito stinging them.
D．There would be fewer insects.
单项选择题
A．Meet his anthropology teacher.B．Urge the woman to finish reading the book soon.C．Read the magazine article.D．Get more information from the women.
A．Meet his anthropology teacher.
B．Urge the woman to finish reading the book soon.
C．Read the magazine article.
D．Get more information from the women.
相关试题