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问题 判断题

露天矿是指从事露天开采的矿山企业。

答案

参考答案：对

选择题

若DNA分子上某一段编码多肽链的碱基排列顺序为TACGCCCAT，而tRNA所携带的氨基酸与反密码子的关系如下表：

试问：合成蛋白质时，氨基酸的排列顺序为[ ]

A．a—b—c

B．b—f—c

C．d—e—f

D．d—b—f
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改错题
短文改错。
      此题要求改正所给短文中的错误。对标有题号的每一行作出判断:
     如有错误(每行只有一个错误)，则按下列情况改正:
     此行多一个词:把多余的词用斜线(﹨)划掉，在该行右边横线上写出该词，并也用斜线划掉。
     此行缺一个词:在缺词处加一个漏字符号(∧)，在该行右边横线上写出该加的词。
     此行错一个词:在错词下划一横线，在该行右边横线上写出改正后的词。
     注意:原行没有错的不要改。
I eager to go to college because I know there is
so many to learn about the world and about human
being. Knowledge is a source of pleasure for me. I
want to study at a college for the fun to knowledge.
I know the college education can prepare me better for
my future. Better education means, more often than not, 
better jobs, better opportunities and better choices.
I want to go to the college because I know that my
parents and other people care for me will be happy
with that. Unless I can study at a nice university, I
will make them happier. I'd like to let you down.
"That's why I must go to college.









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