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【单选题】
编写一个良好的C程序应采用的方法是:
A.
结构化程序设计方法
B.
面向对象程序设计方法
C.
基于构建的程序设计方法
D.
以上都不正确
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参考答案:
举一反三
【简答题】tRNA的二级结构呈 型,三级结构呈 形,其3′端有一共同序列 ,其功能是 。
【判断题】He was past sixty and had a long white beard curling down over his chest
A.
正确
B.
错误
【简答题】Long long ago a man went to India and he had never been there before. When he got there, he saw a lot of fruit, but much of it was expensive because they couldn’t grow much because there was little wa...
【单选题】He had had a long and uncomfortable trip, for he had been confined to the wooden box for over eighteen hours. 划线部分的意思是:
A.
为了
B.
因为
C.
【简答题】Len was thirty years old, and he had very long hair, He lived in a big city, but one year he did not find any work there, so he went to a small town and began looking for work there. He went to a lot ...
【简答题】He had a long and ________ career.
【简答题】关于tRNA的结构及功能:组成tRNA的核苷酸大约()个,tRNA3′末端三个核苷酸顺序是();二级结构呈()形;三级结构呈()形,其两端的功能分别是()和()。
【单选题】有关tRNA描述哪一项是不正确的:
A.
含有密码环
B.
含有反密码环
C.
富含稀有碱
D.
基其二级结构呈三叶草形
E.
3′末端有-CCA-OH
【判断题】肌肉疲劳试验对人体劳动疲劳进行了试验研究,为以后的“劳动科学”打下了基础。
A.
正确
B.
错误
【简答题】阅读短文,判断正(A)误(B) Len was thirty years old, and he had very long hair, He lived in a big city, but one year he did not find any work there, so he went to a small town and began looking for work there. H...
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