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【判断题】
气体通过非多孔膜即致密膜(如高分子聚合物膜)的溶解-扩散的分离机理 此时，气体透过膜的过程可认为由3个环节(步骤)组成。①吸着过程 即气体在膜的上游侧表面被吸附、凝聚、溶解。这个过程带有一定的选择性。 ②扩散过程 即该被吸着的气体在膜两侧压力差、浓度差的推动下，按不同扩散系数扩散透过膜的另一侧。 ③过程 即该已扩散透过的气体在膜下游侧表面被、剥离过程。A.
正确
B.
错误
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举一反三
【单选题】Suppose the Bank of England purchases a £1,000 government bond from you. If you deposit the entire £1,000 in your bank, what is the total potential change in the money supply as a result of the Bank o...
A.
£4,000
B.
£5,000
C.
0
D.
£1,000
【单选题】Ever since the song “Candle in the Wind” was tribute to ______, she is also titled as “England’s Rose”.
A.
Margaret Thatcher
B.
Mother Terasa
C.
Queen Elizabeth I
D.
Princess Diana
【单选题】He died in 1870 and his tomb reads, ‘________ his death, one of the England’s greatest writers _________ to the world.’
A.
At; is lost in
B.
By; is lost to
C.
For; is a loss to
D.
As; gets lost to
【判断题】Shakespeare (1564-1616) is considered the greatest English-speaking writer in history and known as England’s national poet.
A.
正确
B.
错误
【简答题】全自动洗瓶机是如何分类的
【单选题】Suppose the Bank of England purchases a £1,000 government bond from you. If you deposit the entire £1,000 in your bank, what is the total potential change in the money supply as a result of the Bank o...
A.
£4,000
B.
£5,000
C.
£1,000
D.
£0
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