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【单选题】
正常妊娠足月时的羊水量约为（）A.
600ml
B.
800ml
C.
1000ml
D.
1200ml
E.
1400ml
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【简答题】孟子说的:“尽其心者,知其性也;知其性 则知天矣。”这句话出自____。
【简答题】On January,24,1848, less than 10 days before the signing of the peace treaty ending the Mexican War,________ , a 36-year old carpenter and handyman, noticed several bright bits of yellow mineral near ...
【单选题】We were _____ to hear of the death of your mother.
A.
crazy
B.
worried
C.
surprised
D.
sad
【单选题】The peace treaty was signed. Before long they _____ again.
A.
fought
B.
fight
C.
were fighting
D.
have fought
【简答题】孟子说的:“尽其心者,知其性也;知其性 则知天矣。”这句话出自《 () •尽心上 》。
【单选题】We hear that your firm ______ Chinese leatherproducts.
A.
buy
B.
sell
C.
take
D.
is in the market for
【判断题】The peace treaty was signed in 1776, in which the independence, freedom and sovereignty of the 13 states were acknowledged.()
A.
正确
B.
错误
【简答题】在元组关系演算中，投影操作需要在谓词公式中满足条件的元组前加（ ）量词符号。
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