10KV及以下电气设备不停电的安全距离是（）米。A、0.35B、0.7C、1.5

将重庆的2万吨红薯运往湖北汉口，选择（）方式比较合适。

A.铁路运输

B.公路运输

C.水路运输

D.航空运输

You only had meat and fish yesterday. If you had eaten vegetables, they         easily.

A．would digest

B．digested

C．will digest

D．would have digested

原子时系统是建立在（）基础上的时间系统。

A．地球公转

B．地球自转

C．原子能级跃迁频率

D．以上均错

美国空军实施的考评制度是（）。

A．强调直接上级

B．绩效考评

C．阶段考评

D．报告式考评

Passage Four

As for the writer, what can be concluded from the talk

A．He believes driving on a road as dull as a motorway leads to drivers’ sleepiness.

B．He thinks it a pity that the issue of sleepiness has not been properly reported.

C．He agrees with the government bodies that reliable statistics cannot be obtained.

D．He shares with the police that sleepiness has caused 20% of motorway accidents.