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【单选题】
They are talking about ____ birthdays. [ ]A.
the twins
B.
the twin's
C.
the twins'
D.
the twin
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于胸膜的描述,哪项是错误的?
A.
分为脏胸膜和壁胸膜
B.
肋膈隐窝后部是直立位时胸膜腔最低点
C.
右胸膜前界在第5胸肋关节移行为下界
D.
胸膜顶上面覆以胸膜上膜,有固定和保护作用
E.
肺根下方脏、壁胸膜的移行部分,形成肺韧带
【单选题】It is very difficult for non-governmental organizations to measure the ______ of the aid they supply to developing nations.
A.
finding
B.
satisfaction
C.
accuracy
D.
effectiveness
【单选题】These clients draw on the bank ’ s supplies to stock soup kitchens, senior lunch rooms and meal programs for ________ kids.
A.
humiliated
B.
displaced
C.
exiled
D.
impoverished
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