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【简答题】
DNA后随链合成的起始要一段短的RNA引物，它是由 以核糖核苷酸为底物合成的。
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举一反三
【单选题】The scientist who describes the DNA Hypothesis implies that the Protein Hypothesis is weakened by which of the following observations?
A.
For a given organism, the amount of protein in the gametes is half that found in other types of cells.
B.
For a given organism, the amount of protein in different types of cells is not the same.
C.
Protein molecules are composed of many subunits.
D.
Proteins are found only in the nucleus.
【单选题】Could you tell me when _______? [ ]
A.
will the scientist arrive
B.
the scientist would arrive
C.
the scientist will arrive
D.
would the scientist arrive
【单选题】The scientist contested the assumption of previous scientists that the fate of human beings could not be predicated.
A.
respected
B.
supposed
C.
suspected
D.
assumed
【单选题】The scientist suddenly saw the answer to the problem that _____ his mind for the last two months .
A.
is occupied
B.
has been occupied
C.
had occupied
D.
had been occupied
【简答题】队列也是一种操作受限的线性表,它与栈不同的是,队列中所有的插入操作均限制在表的一端进行,而所有的删除操作都限制在表的另一端进行,允许插入的一端称为____ ,允许删除的一端称为____ 。队列具有____ 的特点。
【单选题】The scientist wrote a monograph after many months of research. This means the scientist wrote about
A.
only one thing.
B.
many things.
C.
a few things.
D.
two things.
【单选题】The way _____ the scientist solved the problem was different from what the other scientists were used to. [ ]
A.
in which
B.
what
C.
from what
D.
as
【简答题】栈的特点是:它一种 的线性表,队列的特点是:它是一种 _ ______ 线性表。
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