下列氨基酸中哪个不是必需氨基酸（） - 查题网

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高等继续教育 / 生物化学(基础医学)

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题型描述: 单选题
下列氨基酸中哪个不是必需氨基酸（）
A.亮氨酸
B.甲硫氨酸
C.酪氨酸
D.苯丙氨酸
E.赖氨酸

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生物化学(基础医学)

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喜剧是透过（）揭露本质。审美入门

3、Brazil has become one of the developing world‘s great successes at reducing population growth-but more by accident than design. While countries such as India have made joint efforts to reduce birth rates, Brazil has had better result without really trying, says George Martine at Harvard. Brazil‘s population growth rate has dropped from 2. 99%a year between 1951 and 1960 to 1. 93%a year between 1981 and 1990, and Brazilian women now have only 2. 7 children on average. Martine says this figure may have fallen still further since 1990, an achievement that makes it the envy of many other Third World countries. Martine puts it down to, among other things, soap operas (通俗电视连续剧)and installment (分期付款)plans introduced in the 1970s. Both played an important, although indirect, role in lowering the birth rate. Brazil is one of the world‘s biggest producers of soap operas. Globo, Brazil‘s most popular television network, shows three hours of soaps six nights a week, while three others show at least one hour a night. Most soaps are based on wealthy characters living the high life in big cities. “Although they have never really tried to work in a message towards the problems of reproduction, they describe middle and upper class values-not many children, different attitudes towards sex, women working, ”says Martine. “They sent this image to all parts of Brazil and made people conscious of other patterns of behavior and other values, which were put into a very attractive package. ”Meanwhile, the installment plans tried to encourage the poor to become consumers. “This led to an enormous change in consumption patterns and consumption was incompatible (不相容的)with unlimited reproduction, ”says Martine. 1.According to the passage, Brazil has cut back its population growth _ _ _ _ _ _ _ _ .A) by educating its citizens 【外语教育&网综合英语（二）

关于抗体，下列哪项是正确的医学微生物学和免疫学(护理专)

1[名词解释题] 国际商务谈判河南理工大学

1[简答题] 五亩之宅，树之以桑，五十者可以衣帛矣。鸡豚狗彘之畜，无失其时，七十者可以食肉矣；百亩之田，勿夺其时，数口之家可以无饥矣；谨庠序之教，申之以孝悌之义，颁白者不负戴于道路矣。七十者衣帛食肉，黎民不饥不寒，然而不王者，未之有也。（1）段话主要论述了什么问题？（2）这段话体现出孟子哪些重要思想？（3）这段文字用了什么修辞手法，效果如何？大学语文

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