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【多选题】
核酸探针的标志性特征是
A.
一小段已知序列的单链核酸
B.
一小段未知序列的单链核酸
C.
一小段已知序列的双链核酸
D.
同位素标记物
E.
非同位素标记物
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题目标签:
特征
探针
标志
参考答案:
参考解析:
刷刷题刷刷变学霸
举一反三
【单选题】
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We can drink water when it is
A.
a solid
B.
a liquid
C.
in the air
D.
turned into ice
参考答案:
B
参考解析:
无
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【单选题】
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The number of the deer in the Kaibab had increased enormously in years’ time.
A.
25
B.
6
C.
12
D.
18
参考答案:
D
参考解析:
无
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【单选题】
shuashuati.com
There was ______ time _____ Chinese used foreign oil.
A.
a; when
B.
a; while
C.
/; when
D.
/; while
参考答案:
A
参考解析:
无
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【单选题】
shuashuati.com
What is a symbol of Ireland?
A.
Emerald Isle.
B.
Shamrock.
C.
Harp.
D.
Flute.
参考答案:
B
参考解析:
无
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【单选题】
shuashuati.com
Years later, large numbers of deer in the Kaibab died mainly because of .
A.
the cold
B.
the organized kill
C.
the poor management
D.
the shortage of food
参考答案:
D
参考解析:
无
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