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【多选题】
下列关于层流净化的正确表述A.
层流净化常用于100级的洁净区
B.
层流又分为垂直层流与水平层流
C.
空气处于层流状态，室内不易积尘
D.
洁净区的净化为层流净化
E.
层流净化区域应与净化区域相邻
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举一反三
【多选题】WTO《与贸易有关的知识产权协议》(简称TRIPs)确立了知识产权与贸易的紧密联系和处理原则，第一次将知识产权纳人世界贸易制度，是一项具有开拓性的成果。下列关于TRIPs的说法哪些是正确的?
A.
TRIPs确立了成员保护知识产权的最高标准
B.
TRIPs并入知识产权公约时，并非全文采纳相关公约文本
C.
TRIPs第一次将最惠国待遇引入国际知识产权保护领域
D.
TRIPs规定成员可以采取适当的措施防止知识产权权利人滥用权利，从而防止不合理地限制贸易
【单选题】She has a lot of books , but she has not many bookshelves .
A.
a little
B.
much
C.
a few
D.
many
【单选题】64Henry has many friends working in the government. His _____ of information are usually _____.
A.
resources,reliable
B.
sources,reliable
C.
resources,reliant
D.
sources,reliant
【单选题】She has written ______ her brother has.
A.
as many as essays
B.
as much as essays
C.
as many essays as
D.
as much essays as
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