单项选择题

(Looking through the window) at all the cars on the road, (the traffic) (was getting) much (heavier) than it had been an hour ago.

A. Looking through the window
B. the traffic
C. was getting
D. heavier
<上一题 目录 下一题>
热门 试题

单项选择题
Why is it difficult to predict the possible effects of electromagnetic fields on an airplane’s computers
A．Because it remains a mystery what wavelengths are liable to be interfered with.
B．Because it is extremely dangerous to conduct such research on an airplane.
C．Because research scientists have not been able to produce the same effects in labs.
D．Because experts lack adequate equipment to do such researc
单项选择题
The reason why few airlines want to impose a total ban on their passengers using electronic devices is ______.
A．they don’t believe there is such a danger as radio interference
B．the harmful effect of electromagnetic interference is yet to be proved
C．they have other effective safety measures to fall back on
D．most passengers refuse to take a plane which bans the use of radio and cassette players
相关试题