《脚夫调》是（）地区的民歌

阅读理解。

     An important question about eating out is who pays for the meal. If a friend of yours asks you to have

lunch with him, you may say something like this, "I'm afraid it'll have to be someplace cheap, as I have

very little money." The other person may say,"OK, I'll meet you at McDonald's. "

     This means that the two agree to go Dutch, that is, each person pays for himself. He may also say,

"Oh, no. I want to take you to lunch at Smith's," or "I want you to try the Chinese dumplings there. 

They're great." This means the person wants to pay for both of you. If you feel friendly towards this

person, you can go with him and you needn't pay for the meal. You may just say, "Thank you. That

would be very nice".

     American customs about who pays for dates (绚会) are much the same as them in other parts of the

world. In the old days, American women wanted men to pay for all the meals. But today, a university

girl or a woman in business world will usually pay her way during the day. If a man asks her for a dance

outside the working hours, it means "Come, as my guest". So as you can see, it is a polite thing to make

the question clear at the very beginning.

1. The passage tells us _          .

A. how to eat out

B. who pays for the meal

C. what to eat out

2. If you have little money, _          

A. you'Il have a cheap meal

B. you'll borrow some from others

C. you'll ask your friend to pay for your meal

3.  "Go Dutch" 'in this passage means             .

A. 丢饭馆          

B. 各自付款      

C. 订餐

4.  Sometimes your friend takes you to lunch.  It means _          .

A. he's going to lend some money to you

B. he's going to pay for your meal, too

C. he'll be angry with you

5.  In America, some girls and women              now.

A. ask men to pay for their meals

B. try to pay for the men's meals

C. try to pay for their own meals

女性，39岁。反复发作右上腹疼痛3年。1天前进食油腻食物后腹痛，继之高热39.2℃，疼痛向右肩背部放射，无黄疸，来院急诊。查体：右上腹压痛、反跳痛。

为迅速做出诊断，下列哪项检查最有意义（）。

A.肝功能检查

B.急查血、尿淀粉酶

C.血培养+药敏

D.B超检查

E.腹腔穿刺

什么叫催化剂的热点温度？

有一质点从t=0开始由原点出发沿直线运动，其运动的速度---时间图象如图所示，则质点（）

A.t=1s时，离原点的距离最大

B.t=2s时，离原点的距离最大

C.t=2s时，回到出发点

D.t=3s时，回到出发点

计算机系统进行热启动的方法是按（）。

A.Ctrl+Break

B.Ctrl+Alt+Del

C.Alt+F3

D.Ctrl+Esc+Del