题目内容
A．增加差错控制B．增加安全认证C．增加连接控制D．增加交互控制
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根据所给图表资料，回答 136～140 题。 2008年中国医药工业首季度状况分析
卫生材料
及医药用品
医疗仪器
设备及器械
生物生
化制品
中药饮片
化学原 料药
化学药 物制剂
中成药
总产值(亿元)
44.4
85.4
86.8
43.1
278.0
344.0
252.0
出口额(亿元)
6.0
29.0
14.2
1.7
69.7
10.5
6.0
利润总额(亿元)
3．O
7.2
7.2
1.3
15.4
26.3
18.4
第136题：根据首季度增长情况，本期医药出口增长的亮点是（）。
A．3kHzB．3．4kHzC．64kbit/sD．128kbit/s
图形是()。
Heredity(遗传) is not the only thing that influences our color. Where we live and how we live after we are born are important too. For instance, our genes influence how fat or thin we are. But our weight depends mainly upon how much we eat and how much exercise we get. In the same way, our skin color depends to a large extent upon how much sunshine we get.
When summer arrives and light—colored people go to the beaches, some will tan darkly, some will tan lightly and few will not tan at all. Each one has inherited a different ability to tan, but the differences do not appear until the conditions are right. An outdoor man will soon become pale if he changes to an indoor job, while a desk clerk will take on tan after a short vacation in the sun.
Sometimes people decide that being tanned is better than being pale. Sometimes they decide the opposite.
Centuries ago, most of the people in Europe were peasants and they had to work in the fields all day. Noblemen, on the other hand, did not have to work. They stayed indoors and remained pale. You could always tell a nobleman from a peasant because a peasant had a tan. As a result, a shin so pale that the veins (血管) showed was considered a mark of great beauty.
During the Industrial Revolution things changed. Farmers left their fields and went to work in factories, mines and mills. Working for long hours in dimly—lit factories and mines made their skins pale. (77) Wealthy people, however, could afford to travel so sunny countries. They had the leisure to lie around on the beaches and get tan. Having a tan became a sign of wealth.
In Western Europe and North America pale skin is no longer desirable. Instead of bleaching themselves white with lemon juice, many women spend their time under a sun—lamp. The desire for a quick tan has led to the invention of pills and lotions (涂剂) that darken the skin artificially without exposure to sunlight. These pills and lotions can be bought by anyone at any drugstore. A rich man can spend hundreds of dollars on a vacation in the sunny West Indies and get his suntan there. But his lowest—paid clerk can have what looks like the same tan out of a bottle for a few cents.
Besides genes, our skin color has much to do with ______.
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