急性阑尾炎最具特征的体征是（）。 A.转移性右下腹痛 B.右下腹局限性明显压痛 C.

Most of us trade money for entertainment. Movies, concerts and shows are enjoyable but expensive. (78) If you think that you can’t have a good time without spending a lot of money, read on. A little resourcefulness and a few minutes of newspaper-scanning should give you some pleasant surprises.
People may be the most interesting show in a large city. Stroll through busy streets and see what everybody else is doing. You will probably see people from all over the world; you will certainly see people of every age, size, and shape, and you’ll get a free fashion show, too. Window-shopping is also a safe sport-if the stores are closed.
Check the listings in your neighborhood paper. Local colleges or schools often welcome the public to hear an interesting speaker or a good debate. The film or concert series at the local public library probably won’t cost you a penny. Be sure to check commercial advertise-ments too. A flea market can provide hours of pleasant browsing. Perhaps you can find afree cooking or crafts in a department store.
Plan ahead for some activities. It is always more pleasant not to have people in front of you in a museum or at a zoo. You may save some money, too, since these places often seta side one or two free admission days at slow times during the week. (79) Pretend that you are a tourist from time to time, and get to know your city all over again including the indis-pensable (不可错过的) sights that people travel miles to see. If you feel like taking an in-teresting walk, find a free walking tour, or plan one yourself. You will see your city in anew perspective (视角) once you know more about its history or its architectural treas-ures. With imagination and a spirit of adventure you can quite easily find good entertain-ment at no cost at all.

If you are wandering through the busy streets, which will most attract you

A．Various buildings

B．Car driving

C．Window-shopping

D．Free walking

Come ________, Tom! Let's sing a song.[ ]

A. to   

B. for

C. of   

D. on

对伴有重症肌无力的胸腺瘤患者进行手术治疗，下列说法哪些不当（）。

A.预防胆碱能危象发生

B.患者对去极化肌松剂特别敏感

C.患者对非去极化肌松剂特别敏感

D.预防肌无力危象发生

E.可以使用阿曲库铵

用括号里的词填空。

1. Jim is my friend. _____ is from Guilin. _____ mother is a doctor. (he, his)

2. —Whose dress is this?

    —It is _____ . It is _____ dress. _____ likes it very much. (she, her, hers).

3. —Whose  English books are these?  

    —They  are _____. They are _____ English books. _____ like English very much. (we, our, ours)  

4. Do _____ have any friends here? Yes, Cake and Jane are _____ good friends (they, their)

阅读理解。

     In cities with rent control, the city government sets the maximum rent that a landlord can charge for an

apartment. Supporters of rent control argue that it protects people who are living in apartments. Their rent

cannot increase; therefore, they are not in danger of losing their homes. However, the critics say that after

a long time, rent control may have negative effects. Landlords know that they cannot increase their profits.

Therefore, they invest in other businesses where they can increase their profits. They do not invest in new

buildings which would also be rentcontrolled. As a result, new apartments are not built. Many people who

need apartments cannot find any. According to the critics, the end result of rent control is a shortage of

apartments in the city.

     Some theorists argue that the minimum wage law can cause problems in the same way. The federal

government sets the minimum that an employer must pay workers. The minimum helps people who generally

look for unskilled, low-paying jobs; However, if the minimum is high, employers may hire fewer workers.

They will replace workers with machinery. Therefore, other things being equal, the number of workers that

employers want decreases. Thus, critics hold the opinion that an increase in the minimum wage may cause

unemployment. Some poor people may find themselves without jobs instead of with jobs at the minimum

wage.

     Supporters of the minimum wage say that it helps people keep their dignity. Because of the law, workers

cannot sell their services for less than the minimum. Furthermore, employers cannot force workers to accept

jobs at unfair wages.

     Economic theory predicts the results of economic decisions such as decisions about farm production,

rent control and the minimum wage. The predictions may be correct only if "other things are equal".

Economists do not agree on some of the predictions. They also do not agree on the value of different decisions.

Some economists support a particular decision while others criticize it. Economists do agree, however, that

there are no simple answers to economic questions.

1. This passage shows that setting maximum rent may _____.

A. encourage the construction of more apartments

B. discourage the renting of apartments as homes

C. reduce the shortage of apartments

D. result in a shortage of apartments

2. From the passage, we can infer that rent control _____.

A. is completely unnecessary

B. will likely bring about undesired results

C. will bring positive effects in the long run

D. is necessary under all circumstances

3. The problem of unemployment may come up when _____.

A. the minimum wage is set too low

B. the workers are unskilled

C. the minimum wage is set too high

D. people need low-paying jobs

4. This passage is mainly about economists disagreement on _____.

A. the effectiveness of government controls

B. the urgency of getting rid of government controls

C. the relationship between supply and demand

D. the possible results of government controls

5. We can conclude from the passage that _____.

A. the results of economic decisions can always be predicted

B. predicting the results of economic decisions is something complicated

C. minimum wage can not protect employees

D. economists usually have the same prediction about an economic decision