每个足球的售价是78元，200元钱最多可以买回3个足球．______．（判断对错

When you think of Beijing, the beautiful green waters and hills of Beihai Park and the grand and beautiful Forbidden City will come to your mind.

In recent years, groups of modern buildings and specially designed plazas have appeared on Beijing’s streets. Standing in the street, you can feel how Beijing has changed. But foreigners still like to go to the hutongs.

The word hutong comes from the Mongolian language. Hutongs come to Beijing more than 700 years ago. As time passed, the hutongs have remained, and have become an important part of the essence of Beijing.

Many foreigners, when they come to Beijing from their far countries, will go directly to visit the hutongs after setting down. They sit in the courtyards, chatting with the native Beijingers about neighbors and their life. It seems that through their chatting, they can find the true meaning of Chinese family life.

Waving good-bye, they have to leave the hutongs, and say goodbye to the families with whom they have chatted happily. But they don’t feel like leaving. The hutongs have brought great enjoyment to them.

Although every country has it own special cultural background, economic situation and level and feelings are similar. The hutong is a cultural symbol of this city. And the families of the hutongs are also unforgettable.

小题1:What do we often think of when we talk about Beijing？

小题2:Where do the foreigners still like to go although Beijing has changed a lot?

小题3:What do we know from the third paragraph ?

小题4:将文中划线部分译成汉语

小题5: The best title for the passage can be_______.

A．How the word hutong comes from

B．Every country has it own special cultural background

C．The foreigners like to go to hutongs directly

D．Hutong and family

篮球运动是一项同学们喜欢的体育运动，若测得某个篮球从开始下落到触地反弹至最高点过程中的v-t图像（向下为正方向），如图所示。若篮球的质量为m=0.6 kg，g取10 m/s²。求触地过程中篮球对地面的平均作用力（不计空气阻力）。

化学反应当量定律

可变抱箍直线架设调整可变抱箍四个箍片的孔距，使之符合所需要的杆经。为使箍片和杆面密贴，可用铁锤敲打。（）

A.对

B.错

监测装置的选择应具有针对性，需结合工程实际情况，合理选用（）的监测装置进行状态监测。

A.价格低廉

B.安全可靠

C.先进适用

D.维护方便