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【单选题】
由父母遗传的生命物质,称为A.
先天之精
B.
后天之精
C.
生殖之精
D.
脏腑之精
E.
水谷之精
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【简答题】Listen to the passage and fill in the blanks with the exact words you hear. Most people like to keep a healthy 1) _____ during the holiday season starting from Thanksgiving to Christmas and New Year. ...
【单选题】听力原文： Before World War n, we spent our summer holidays in Hungary. I have only the dim memory of the house we lived in, of my room and my toys. Nor do I recall clearly the large family of grandparents...
A.
He was first of all a scientist.
B.
He was not only a naturalist but also a scientist.
C.
He was no more than a born naturalist.
D.
He was a scientist as well as a naturalist.
【单选题】听力原文： Before World War II, we spent our summer holidays in Hungary. I have only the dim memory of the house we lived in, of my room and my toys. Nor do I recall clearly the large family of grandparent...
A.
Because the family was extremely large.
B.
Because he didn't live very long with them.
C.
Because he was too young when he lived with them.
D.
Because he was fully occupied with observing nature.
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