单项选择题

A．The high temperatures required for its use.
B．The lack of trained environmental engineers.
C．The opposition of automobile manufacturers.
D．The high cost of materials used in its production.
<上一题 目录 下一题>
热门 试题

单项选择题
A．He did a good job in mathematics.B．Mathematics made him a smart person.C．He majored in biology in college.D．He didn’t like mathematics at all.
A．He did a good job in mathematics.
B．Mathematics made him a smart person.
C．He majored in biology in college.
D．He didn’t like mathematics at all.
单项选择题
A．John is more likely to develop lung cancer.B．Mary is more likely to develop lung cancer.C．John and Mary have the same chance to develop cancer.D．Neither John nor Mary has the chance to develop cancer.
A．John is more likely to develop lung cancer.
B．Mary is more likely to develop lung cancer.
C．John and Mary have the same chance to develop cancer.
D．Neither John nor Mary has the chance to develop cancer.
相关试题