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【单选题】
在血管外,红细胞被破坏的主要场所是(2010)( )A.
肝
B.
脾
C.
胸腺和骨髓
D.
肺
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【简答题】She had a lifelong commitment to f_____. (the belief and aim that women should have the same rights, power, and opportunities as men.)
【单选题】She told me that she had mailed part of the products and that the rest ______ in a few days.
A.
has followed
B.
have followed
C.
was following
D.
were following
【单选题】You can't imagine the trouble she _____ her missing child. [ ]
A.
had found
B.
had finding
C.
had to find
D.
has found
【单选题】The difficulty she had _____ her three children was solved by the local government. [ ]
A.
feeding
B.
fed
C.
to feed
D.
feed
【简答题】为了增大输出电阻采用 [填空(1)] 负反馈A. 电流
【简答题】为了 增大 输出电阻采用 负反馈。
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