Shanghai is a nice city. The weather here is mild (温和的), that is, it is neither too hot nor too cold. It changes from season to season. Now many tall buildings have been set up one after another. But at the same time, the city is full of people. As a result, the traffic is terrible. Traffic jams (拥挤) happen during the rush(高峰) hours. If you want to go to a place far away, the fastest way is neither driving, nor riding a bike. It is often walking! The policemen in Shanghai are very helpful. Visitors can ask them for help if they lose their way or lose something. But when you disobey (违背)the traffic rules, they will be very strict with you. A lot of people in Shanghai can speak English. Travellers from English speaking countries feel at home here. Welcome to Shanghai.

小题1:The weather in Shanghai is _________.        

A．mild

B．hot

C．cold

D．cool小题2:The traffic in Shanghai is terrible because the city is full of _________.

A．many buildings

B．people

C．bikes

D．streets小题3:Sometimes the fastest way to a place far away is to go __________.

A．by taxi

B．by bike

C．on foot

D．by bus小题4:The policemen in Shanghai are always ready to __________.

A．disobey

B．work

C．talk

D．help小题5:English speaking people can often _________ people in the streets in Shanghai.

A．listen to

B．talk to

C．get

D．ask

以下有关分子叙述，错误的是 [ ]

A．一般分子直径的数量级为10^-10 m

B．分子是紧密排列的，分子之间没有间隙

C．分子一直处在永不停息的运动中

D．分子间不仅存在吸引力，而且还存在排斥力