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【单选题】
可从粪便标本中分离的一组病毒是A.
甲型肝炎病毒、乙型脑炎病毒
B.
狂犬病病毒、轮状病毒
C.
脊髓灰质炎病毒、轮状病毒
D.
乙型肝炎病毒、戊型肝炎病毒
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举一反三
【单选题】This is the _____ piano on which the composer created some of his greates-t works.
A.
actual
B.
genuine
C.
real
D.
original
【单选题】It being not only possible but even easy to predict which ten-year-old boys are at greatest risk of growing up to be persistent offenders, what are we doing with the information? Just about the last t...
A.
before adolescence
B.
during institutional treatment
C.
during adolescence
D.
when the problem becomes acute
【单选题】The computer was one of the greates t _ in the 20th century. [ ]
A.
invent
B.
inventing
C.
inventions
D.
invention
【单选题】In my view, realizing ______ great renewal of the Chinese nation is _______ Chinese nation's greatest dream in modern history.
A.
the；the
B.
a；the
C.
a；不填
D.
the；a
【简答题】厄瓜多尔的人口主要集中在哪些城市?
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