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______年Luria和Human在T偶数噬菌体对大肠杆菌感染实验中首次发现了细菌的______现象。

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更多“______年Luria和Human在T偶数噬菌体对大肠杆菌…”相关的问题
第1题
1952年Luria和Human在______噬菌体对大肠杆菌感染实验中首次发现了细菌的限制和修饰现象。
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第2题
通过两个实验可以证明细菌基因突变的随机性,第一个实验是Luria与Del.bruck在1943年通过_________
证实的,第二个实验是Lederberg等在1952年设计的_________。

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第3题
元组变量t=(“cat”,“dog”,“tiger”,“human”),t[::-1]的结果是()。

A.{‘human’,‘tiger’,‘dog’,‘cat’}

B.[‘human’,‘tiger’,‘dog’,‘cat’]

C.运行出错

D.(‘human’,‘tiger’,‘dog’,‘cat’)

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第4题
From paragraph 1, we know that some 40 genes involving in cancer are ______.A.harmful to t

From paragraph 1, we know that some 40 genes involving in cancer are ______.

A.harmful to the human body

B.necessary to the human body

C.the elements that form. cancer

D.useless to the human body

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第5题
Without water, human ______ .

A.can't live

B.couldn't live

C.not live

D.don't live

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第6题
Human beings aren’t ______ mistakes. And I decided to forgive him.

A.with

B.above

C.without

D.within

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第7题
What does the writer think about machines with human-like ability?A.He believes they will

What does the writer think about machines with human-like ability?

A.He believes they will be useful to human beings.

B.He believes that they will control us in the future.

C.He is not quite sure in what way they may influence us.

D.He doesn't consider the construction of such machines possible.

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第8题
If cloned animals could be used as organ donors, ().A、people don’t have to worry about c

If cloned animals could be used as organ donors, ().

A、people don’t have to worry about cloning twins for transplants

B、raising animals such as pigs can help solve the problem

C、the human body attacks and destroys tissue from other species

D、it may be more efficient to produce such animals by cloning than by cur

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第9题
某公司每年工资总额在比前年增加20%的基础上再追加200万元,若以Wt表示第t年的工资总额(单位:百万

某公司每年工资总额在比前年增加20%的基础上再追加200万元,若以Wt表示第t年的工资总额(单位:百万元),求Wt满足的方程;若2000年该公司的工资总额为1 000万元,则5年后工资总额将是2000年的多少倍?

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第10题
Which one is not true about Apple according to the article?A.They build products that ex

Which one is not true about Apple according to the article?

A.They build products that extend human capability, freeing people from drudgery and helping them achieve more than they could alone.

B.They expect individual commitment and performance above the standard for our industry.

C.They believe that they don’t need to own and control the primary technologies behind the products they make.

D.They believe that we’re on the face of the Earth to make great products, and that’s not changing.

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