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【单选题】
细菌被紫外线照射引起DNA损伤时，编码DNA修复酶的基因表达增强，这种现象称为（）A.
组成性基因表达
B.
诱导表达
C.
阻遏表达
D.
正反馈阻遏
E.
负反馈阻遏
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Each year, hundreds of thousands of people die from heart attack, a leading cause of death. In the Landmark Physicians' Health Study at Harvard University in the United States in the late 1980s, a res...
A.
expected
B.
demanded
C.
assigned
D.
advised
【简答题】Hundreds of thousands of people queue up outside big department stores on Boxing Day.
【单选题】2 Hundreds of buildings werewrecked by the earthquake.
A.
damaged
B.
shaken
C.
fallen
D.
jumped
【单选题】Joe _______ in No. 6 Middle School. He thinks it’s a good _______.
A.
works; work
B.
work; job
C.
works; job
D.
work; work
【单选题】( )2.There has been life the earth for hundreds of millions of years.
A.
in
B.
on
C.
of
D.
that
【单选题】Each year, hundreds of thousands of people die from heart attack, a leading cause of death. In the Landmark Physicians' Health Study at Harvard University in the United States in the late 1980s, a res...
A.
expected
B.
demanded
C.
assigned
D.
advised
【单选题】On National day___people take part in all kinds of celebration A. hundreds of millions of B. millions of hundred of C. hundreds mllins of D. millions hundreds of
A.
1
B.
2
C.
3
D.
4
相关题目：
【单选题】2 Hundreds of buildings werewrecked by the earthquake.
A.
damaged
B.
shaken
C.
fallen
D.
jumped
【单选题】( )2.There has been life the earth for hundreds of millions of years.
A.
in
B.
on
C.
of
D.
that