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【单选题】
下列氨基酸哪个含有吲哚环?A.
蛋氨酸
B.
苯丙氨酸
C.
色氨酸
D.
结氨酸
E.
组氨酸
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【简答题】完形填空。 Who invented music? Who sang the first song? No one 1 exactly (准确地) the answers to these questions. But we know that music is very 2 in everyone's life. Babies and young children would like some...
【简答题】The Spring 1 is the Chinese New Year .It usually comes in February . everyone in Chinese likes it very much .When it comes ,Li Lei helps his parents clean the house and do some other housework . on th...
【简答题】My name is Sandra. I have a brother. _____ name is Tom. We like different sports. I like playing_____. it is fun. I like tennis. too. ___ I don’t like basketball. it is____. my brother_____ basketball...
【简答题】阅读理解。 Two Chinese farmers sang 'in the spring' in their small room after drinking in a late August evening in Beijing. A friend put their song on the Internet. And soon they became stars around China....
【单选题】T48 逻辑电路的分析任务是( )
A.
．给定功能，通过一定的步骤设计出电路
B.
研究电路的可靠性
C.
研究电路如何提高速度
D.
给定电路，通过一定的步骤说明电路的功能
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