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【单选题】
A:_______________ B: His sister is a teacherA.
Who is his sister?
B.
How is his sister?
C.
What is his sister?
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【单选题】We couldn't find out______, so we asked a policemen.
A.
whose bike it was
B.
whose bike was it
C.
whose it was bike
D.
whose was it bike
【简答题】( )是指处理物料中的微粒、胶体粒子或溶质大分子由于与膜存在物理化学相互作用或机械作用而引起的在膜表面或膜孔内吸附、沉积造成膜孔径变小或堵塞,使膜产生透过流量与分离特征的不可逆变化现象。
【单选题】As we couldn't find a better way to work out the problem. Linda suggested ____ to her father for help
A.
to turn
B.
turning
C.
turn
D.
turned
【简答题】根据句意和首字母提示，补全单词。 1. They are c__________ buying a new car. 2. I couldn't find a p place to sit on. 3. The flood in her hometown b out last year. 4. I know little about that. You can ask Maria because ...
【简答题】( )是指处理物料中的微粒,胶体或溶质大分子与膜存在物理化学作用或机械作用而引起的在膜表面或膜孔内吸附,沉积造成膜孔径变小或堵塞,使膜产生透过流量与分离特性的不可逆变化现象。
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