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【單選題】
若DNA分子的某個(gè)基因含有240個(gè)脫氧核苷酸和80個(gè)鳥(niǎo)瞟呤,則該片段轉(zhuǎn)錄成的信使RNA中,含有尿嘧啶最多不會(huì)超過(guò) ( )
A.
20個(gè)
B.
40個(gè)
C.
60個(gè)
D.
80個(gè)
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參考答案:
舉一反三
【單選題】I cannot spend ________ money on the car which is ________ expensive for me.
A.
too much; much too
B.
far too; too much
C.
much too; too much
D.
too many; much too
查看完整題目與答案
【單選題】The past 30 years has ______ the great changes that have taken place in China.
A.
seen
B.
noticed
C.
watched
D.
looked
查看完整題目與答案
【單選題】catch the first bus, he got up very early this morning.
A.
In order to
B.
In order that
C.
So as to
D.
So that
查看完整題目與答案
【單選題】Some students have trouble _____ grammar while others have difficulty______ new words.
A.
in; remember
B.
for; to remember
C.
on; remembering
D.
with; remembering
查看完整題目與答案
【單選題】______ that the way people spend their holidays has changed a great deal in the past ten years.
A.
Which is reported
B.
What is reported
C.
As is reported
D.
It is reported
查看完整題目與答案
相關(guān)題目:
【單選題】I cannot spend ________ money on the car which is ________ expensive for me.
A.
too much; much too
B.
far too; too much
C.
much too; too much
D.
too many; much too
查看完整題目與答案
【單選題】The past 30 years has ______ the great changes that have taken place in China.
A.
seen
B.
noticed
C.
watched
D.
looked
查看完整題目與答案
【單選題】catch the first bus, he got up very early this morning.
A.
In order to
B.
In order that
C.
So as to
D.
So that
查看完整題目與答案
【單選題】Some students have trouble _____ grammar while others have difficulty______ new words.
A.
in; remember
B.
for; to remember
C.
on; remembering
D.
with; remembering
查看完整題目與答案
【單選題】______ that the way people spend their holidays has changed a great deal in the past ten years.
A.
Which is reported
B.
What is reported
C.
As is reported
D.
It is reported
查看完整題目與答案
參考解析:
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