The radiation amount of a mobile phone for two half-hour periods per day is equ

题型：不详难度：来源：

The radiation amount of a mobile phone for two half-hour periods per day is equal to ___ to an X-ray for ten seconds.

A．expose

B．exposing

C．exposed

D．being exposed

答案

解析

略

举一反三

It is warned that no one is permitted______the lab after 10:00 p.m.

A．enter

B．to entering

C．to enter

D．entering

题型：不详难度：| 查看答案

.
It is reported that a small ship ran into a rock at sea, _____ all ten people on board.

A．killing

B．to kill

C．killed

D．kills

题型：不详难度：| 查看答案

.
As Christmas draws near, they feel more and more uneasy with their stored money ____.

A．to be run out

B．to run out of

C．being run out

D．running out

题型：不详难度：| 查看答案

.
With a basket on her back, the little girl is walking along the stream with green grass and red flowers ____ on both sides.

A．to grow

B．grown

C．growing

D．being grown

题型：不详难度：| 查看答案

.
__ from the motherland for about a century, Hong Kong returned to China in 1997.

A．Being separated

B．Having separated

C．Having been separated

D．to be separated

题型：不详难度：| 查看答案