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【单选题】
有关粉碎的不正确表述是A.
粉碎的主要目的是减小粒径，增加比表面积
B.
粉碎是将大块物料破碎成较小颗粒或粉末的操作过程
C.
粉碎的意义在于：有利于减少固体药物的密度
D.
粉碎的意义在于：有利于固体药物的溶解和吸收
E.
粉碎的意义在于：有利于提高固体药物在液体、半固体中的分散性
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举一反三
【单选题】Most respondents of the Wall Street Journal poll______.
A.
are pessimistic about America's general track
B.
are optimistic about the country's outlook
C.
appreciate America's economic recovery
D.
feel that they couldn't afford a house
【单选题】The Midwest is America's most important______ area.
A.
agricultural
B.
industrial
C.
manufacturing
D.
mining industry
【单选题】In the program title' America' s Most Wanted' ( line 1, para 3 ), 'most wanted' probably refers to______.
A.
criminals
B.
producers
C.
police
D.
actors
【单选题】It is acknowledged that the modem musical show is America's most original and dynamic contribution toward theater. In the last quarter of 20th century, America has produced large 【21】______ of musical...
A.
number
B.
amount
C.
quantity
D.
numbers
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