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【單選題】
一只蝴蝶細胞中的DNA分子的一個單鏈片段含有69個堿基，由它控制合成一條肽鏈時，可產生多少個水分子： ( )
A.
36個
B.
23個
C.
22個
D.
18個
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舉報參考答案：
舉一反三
【單選題】In many ways, sport ______ an important element in today’s international cultural exchange.
A.
comes
B.
remains
C.
focuses
D.
exists
【單選題】To win, listeners must indentify the name of the musical number and ______.
A.
when it was recorded
B.
where it was recorded
C.
who recorded it
【單選題】The tombs ______ the time of the Northern and Southern Dynasty, and paper cuts of animals were found in them.
A.
are dated back to
B.
were dated back to
C.
date back to
D.
dated back to
【單選題】Its blacks eyes are fixed ______ the cabbage, showing the creature’s interest in the vegetable.
A.
to
B.
in
C.
at
D.
on
【單選題】Kong Xiangdong’s Dream Tour Concert ______ to run for the next two years in many main cities in the world.
A.
expecting
B.
expected
C.
is expecting
D.
is expected
相關題目：
【單選題】In many ways, sport ______ an important element in today’s international cultural exchange.
A.
comes
B.
remains
C.
focuses
D.
exists
【單選題】To win, listeners must indentify the name of the musical number and ______.
A.
when it was recorded
B.
where it was recorded
C.
who recorded it
【單選題】The tombs ______ the time of the Northern and Southern Dynasty, and paper cuts of animals were found in them.
A.
are dated back to
B.
were dated back to
C.
date back to
D.
dated back to
【單選題】Its blacks eyes are fixed ______ the cabbage, showing the creature’s interest in the vegetable.
A.
to
B.
in
C.
at
D.
on
【單選題】Kong Xiangdong’s Dream Tour Concert ______ to run for the next two years in many main cities in the world.
A.
expecting
B.
expected
C.
is expecting
D.
is expected
參考解析：
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