电弧放电时，一方面产生（），同时还会产生弧光辐射。A、漏电B、高热C、寒冷

“其他业务成本”账户属于成本类账户。

Happy Farm is an online game. It is very popular among people in China. The game offers you a piece of empty land and some seeds (种子) at first. You are like the farmer. If your land is small, you can spend some money to make it big. And you must harvest your things on the farm on time, or some other farmers will steal your fruits, vegetables, milk, eggs and so on. Of course, you can steal theirs. If you want to make money, you must sell your things out.

Some Chinese websites have offered this game to its users. So far, it is said that about 16 million Chinese people are playing this game. Some people were so crazy (疯狂的) that they even get up in the midnight to harvest their crops and steal others’.

Happy Farm brings happiness to people. It is really a fascinating game. But it also brings many problems. It is reported that a baby died in a hospital just because the doctor didn’t give him timely treatment. Do you know what the doctor was doing? He was playing Happy Farm! There are many stories like this.

小题1:According to this passage, what is very popular in China?

A．The farmer

B．Happy Farm

C．The Chinese website

D．The Doctor小题2:Which is the right order to play the game Happy Farm?

a. Plant some crops.         b. Harvest your crops on time.   

c. Sell your things out.       d. Get land and some seeds.

A．d-b-c-a

B．a-d-c-b　

C．d-a-b-c　

D．c-d-a-b小题3:Many people are so involved in the game Happy Farm that they get up in the midnight _____.

A．to harvest and steal crops

B．to chat with others

C．to sell their things out

D．to read news about this game小题4:What does the writer think of this game?

A．It is not interesting at all.

B．People shouldn’t be crazy about it.

C．People must get up early to steal crops.

D．People may play it when they are at work.

已知在△ABC中，sinA∶sinB∶sinC＝3∶5∶7，那么这个三角形的最大角是     (   　)

A．135°

B．90°

C．120°

D．150

齐步走的步幅和步速分别是（）厘米、每分钟（）步，跑步走的步幅和步速分别是（）厘米、每分钟（）步。

我国《宪法》规定，中华人民共和国公民在何种情况下有从国家和社会获得物质帮助的权利( )

A．年轻

B．上学

C．健康

D．丧失劳动能力

E．就业