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【简答题】
生成1 L乳汁要有400-500 L血液流过乳腺,简述牛乳生成的两个过程?
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【单选题】The jury consists of ordinary, independent citizens summoned by the court: ___________ in England, Wales and Northern Island, and 15 in Scotland.
A.
15
B.
13
C.
14
D.
12
【单选题】Whether we’ll hold the sports meet depends on the weather, _____?
A.
won’t we
B.
shan’t we
C.
doesn’t it
D.
won’t it
【单选题】The difficulty we now meet with is _______ we can persuade him to tell the truth. [ ]
A.
whether
B.
that
C.
what
D.
why
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