皮皮学，免费搜题
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【单选题】
下列哪种方法不能增加粉体的流动性A.
在一定范围内加大粒子径
B.
控制含湿量
C.
添加大量的助流剂
D.
使粒子表面光滑
E.
流动中物料增加振动
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皮皮学刷刷变学霸
举一反三
【单选题】The word 'thwarted' in line 16 is closest in meaning to ______.
A.
continued
B.
influenced
C.
encouraged
D.
frustrated
【简答题】Ella Fant was a middle-aged lady who lived with her only son John in a small house.She__16__John very much. In her__17__he couldn't do anything__18__.Every morning she would give him breakfirst_-19__b...
【单选题】John is a good student, ___his best subject.
A.
as English
B.
being English
C.
English as
D.
English being
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