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【單選題】
幸福的家庭都不希望降生一個有缺陷的后代,因此有必要采取優生措施。下列選項正確的是
A.
基因診斷可以用來確定胎兒是否患有貓叫綜合征、色盲病等
B.
用酪氨酸酶能對白化病進行基因診斷
C.
遺傳咨詢是預防遺傳病發生的最主要方法
D.
禁止近親結婚是預防遺傳病發生的最簡單有效的方法
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參考答案:
舉一反三
【單選題】With the help of volunteers, we finally made so many children’s wishes _____.
A.
come true
B.
come up
C.
come across
D.
come out
查看完整題目與答案
【單選題】Don’t leave the water _____ while you are brushing your teeth.
A.
runs
B.
running
C.
run
D.
to run
查看完整題目與答案
【單選題】We were shocked to hear the news that _______ two Chinese businessmen were shot to death in South Africa the other day and _______ third one died in hospital yesterday.
A.
不填; a
B.
the; the
C.
the; a
D.
不填; the
查看完整題目與答案
【單選題】The writer wrote the passage in order to .
A.
tell us a funny story
B.
warn us not to make mistakes
C.
tell us the differences between AE and BE
D.
encourage us to speak one style of English
查看完整題目與答案
【單選題】Van Gogh succeeded in selling only one painting in his lifetime, and ______ was sold to his brother.
A.
another
B.
that
C.
one
D.
which
查看完整題目與答案
相關題目:
【單選題】With the help of volunteers, we finally made so many children’s wishes _____.
A.
come true
B.
come up
C.
come across
D.
come out
查看完整題目與答案
【單選題】Don’t leave the water _____ while you are brushing your teeth.
A.
runs
B.
running
C.
run
D.
to run
查看完整題目與答案
【單選題】We were shocked to hear the news that _______ two Chinese businessmen were shot to death in South Africa the other day and _______ third one died in hospital yesterday.
A.
不填; a
B.
the; the
C.
the; a
D.
不填; the
查看完整題目與答案
【單選題】The writer wrote the passage in order to .
A.
tell us a funny story
B.
warn us not to make mistakes
C.
tell us the differences between AE and BE
D.
encourage us to speak one style of English
查看完整題目與答案
【單選題】Van Gogh succeeded in selling only one painting in his lifetime, and ______ was sold to his brother.
A.
another
B.
that
C.
one
D.
which
查看完整題目與答案
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