问题 单项选择题 A1型题

关于水溶性维生素与脂溶性维生素的正确描述是()

A.前者比后者易储存于体内

B.大量摄入后,前者有毒性,后者没有

C.其化学组成中除含有碳、氢、氧外,有的还含有其他元素。他们可溶于水却不溶于脂肪和有机溶剂;在体内有少量储存,其原形物或代谢产物可经尿排出体外;一般无毒性,但过量摄入也可出现中毒;如摄入过少可以较快出现缺乏症状。

D.前者存在于植物性食物,后者存在于动物性食物

E.前者缺乏时出现症状快,后者慢

答案

参考答案:E

解析:脂溶性维生素,包括维生素A、D、E、K,其共同的特点是:化学组成仅含碳、氢、氧,不溶于水而溶于脂肪及有机溶剂中;在食物中常与脂类共存,吸收过程需要脂肪的参与;主要在肝和脂肪中储存;如摄入过多,可引起中毒;如摄入过少,相应的缺乏症状出现缓慢;不能用尿负荷试验进行营养状况评估。水溶性维生素,包括B族维生素和维生素

阅读理解

Ever wondered why some businesses fail and others seem to go from strength to strength(越来越兴旺发达)? One of the major reasons for success or failure in any business is the choice of location. The ABS can be of great help in choosing the most likely place to set up your business. Whether it’s simple or a complex business.

Case study one

A Sydney doctor specializing pediatrics(小儿科) was hoping to set up a practice outside the metropolitan area, probably on the northern coast of New South Wales. He was unsure of the best place in this region and came to the ABS for help. The ABS was able to put together a report containing details of the proportion of the children in particular areas, along with information on regions with the highest birth rates. This enabled the doctor to work out where future demand for his services would be.

Case study two

A suburban retailer(零售商)in Perth owned a shoe store which stocked a wide range of shoes for men, women and children. There had been an increase in the number of similar shoe stores in the suburban shopping center and the owner wanted to assess the possibility of switching to selling imported shoes and handbags for women only. In order to ensure whether there was a market for these products, the retailer needed to obtain details of income by age, sex, and occupation for all the women in the city of Perth. Using information from the 1996 Census(普查)of Population and Housing, the ABS was able to provide this type of information in a detailed report. With the information, the retailer was able to believe that there were enough professional working women in the area with middle to high incomes, which makes his business possible.

1. What information did the Sydney doctor get from the ABS about the northern coast of New South Wales?

A. The number of medical practices there.

B. The detailed information about the children.

C. Its present and future economic situations.

D. The ideal place to start a practice there.

2. The retailer wanted to switch to selling imported shoes and handbags for women because________.

A. there were more and more working women

B. he wanted to enlarge the original store

C. there were more and more shoe stores

D. imported products were popular

3. What does the ABS do for its customers?

A. Doing research work in the fields.

B. Suggesting the most potential market.

C. Providing considerable amounts of data.

D. Predicting the possible consumer goods.

4. This passage is most probably a(n) _____________.

A. handout for management           B. income report

C. advertisement                   D. plan for a project

单项选择题