角膜基质炎的常见病因是A．先天性梅毒 B．单纯疱疹 C．麻风 D．腮腺炎 E．结核

阅读理解 。

     Young people should be enjoying the best time of their lives, but those in their twenties and thirties

are in worse health than their parents, a British survey has found.

     Drinking too much, eating fast food and being short of exercise all have a bad influence on young

people. As a result, the young are more likely (可能的) to have headaches, catch colds or become

stressed than their parents.

     According to the survey, those aged between 18 and 34 are three times more likely to catch colds

than the older people. The following are the main reasons:

     The old people usually eat more healthily. More than four in ten old people eat five or more portions (份) of fruit or vegetables a day. It's two times the number of the young men and women. Six in ten old

people cook their own meals every day, compared to less than one third of the young people. Almost

10% of the young people admit (承认) that they eat fast food for every meal and 2% say they only eat

at restaurants.

     The old people are also more likely to take a lot of exercise. 12% of them spend at least 30 minutes

doing exercise each day. They are healthier. However, only 9% of the young do so.

根据短文内容，选择最佳选项。

1. The survey was made in _____. 

A. China      

B. Japan        

C. America      

D. the UK

2. The underlined phrase "short of" means "_____" in Chinese.

A. 缺乏      

B. 少于        

C. 短小        

D. 除……外

3. According to the survey, the parents are less likely to _____ than the young people.

A. feel relaxed  

B. catch colds    

C. do exercise    

D. eat at home

4. Among the old people, about _____ in 100 usually have meals at home.

A. 10        

B. 30          

C. 40            

D. 60  

5. Which of the following is NOT true according to the survey?

A. The young get headaches and colds more easily than the old.

B. There are 2% of the young people who only eat at restaurants.

C. 80% of the young people eat a lot of fruit or vegetables a day.

D. Nine in one hundred young people take exercise each day.

工艺商场按标价销售某种工艺品时，每件可获利45元，按标价的八五折销售该工艺品8件与将标价降低35元销售该工艺品12件所获利润相等．问该工艺品每件的进价、标价分别是多少元？

患者男，55岁。主因上腹部持续剧烈疼痛1d入院。

最可能的诊断是（提示患者皮肤、巩膜黄染逐渐加深，TBil130μmol/L，DBil112μmol/L，WBC16.5×10⁹/L，血淀粉酶及腹部X线片正常。B超检查见胆总管直径1.5cm，内有多枚强回声的光团，肝内胆管无明显扩张，胆囊壁饱满，胆囊内可见多发强回声的光团伴声影。）（）

A.急性胆囊炎、Mirizzi综合征

B.急性胰腺炎

C.上消化道穿孔

D.急性梗阻性化脓性胆管炎

E.感染中毒性休克

F.急性胃炎

天车起升机构的工作类型是由起升机构的（）和忙闲程度这两个因素及其各种级别的不同组合而确定的。

A、载荷率

B、起重量

C、额定起重量

D、载荷

缩分时，各次切割样质量应均匀，为此，供入缩分器的煤流应均匀，切割器开口应固定，供料方式应使煤流的粒度离析减到最小（）