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【單選題】
細胞的有絲分裂和減數分裂都可能產生可遺傳的變異,其中僅發生在減數分裂過程的變異是
A.
染色體不分離或不能移向兩極,導致染色體數目變異
B.
非同源染色體自由組合,導致基因重組
C.
染色體復制時受誘變因素影響,導致基因突變
D.
非同源染色體某片段移接,導致染色體結構變異
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參考答案:
舉一反三
【單選題】The speaker raised his voice _____ make himself ______ by the listeners.
A.
so that; heard
B.
in order to; hearing
C.
so as to; heard
D.
to; to be heard
查看完整題目與答案
【單選題】There was such a long queue for coffee at the break that we _____ gave up.
A.
unfortunately
B.
ually
C.
generously
D.
purposefully
查看完整題目與答案
【單選題】According to Carlos Pardo, _______.
A.
it is impossible to have traffic-free streets
B.
people should keep away from their cars
C.
it’s funny to get around the city without cars
D.
each day should be like World Car Free Day
查看完整題目與答案
【單選題】All the students admire this class _____ the teachers are treating their students like friends.
A.
why
B.
where
C.
which
D.
that
查看完整題目與答案
【單選題】September 22 is a day ______.
A.
when cars cause no damage to the earth
B.
when we can go on separate holidays
C.
that reminds us to drive our cars less
D.
that tells us to refuse to drive any cars
查看完整題目與答案
相關題目:
【單選題】The speaker raised his voice _____ make himself ______ by the listeners.
A.
so that; heard
B.
in order to; hearing
C.
so as to; heard
D.
to; to be heard
查看完整題目與答案
【單選題】There was such a long queue for coffee at the break that we _____ gave up.
A.
unfortunately
B.
ually
C.
generously
D.
purposefully
查看完整題目與答案
【單選題】According to Carlos Pardo, _______.
A.
it is impossible to have traffic-free streets
B.
people should keep away from their cars
C.
it’s funny to get around the city without cars
D.
each day should be like World Car Free Day
查看完整題目與答案
【單選題】All the students admire this class _____ the teachers are treating their students like friends.
A.
why
B.
where
C.
which
D.
that
查看完整題目與答案
【單選題】September 22 is a day ______.
A.
when cars cause no damage to the earth
B.
when we can go on separate holidays
C.
that reminds us to drive our cars less
D.
that tells us to refuse to drive any cars
查看完整題目與答案
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