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【简答题】
轴 Φ50js8,IT8=39 μ m,其上偏差为( )mm,下偏差为( )mm。
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反馈参考答案：
举一反三
【简答题】糖在人体中的作用是什么?
【简答题】教材第13页task6
【单选题】根据我国增值税法的规定，纳税人销售或者进口粮食等农产品、食用植物油、食用盐，税率为（ ）。
A.
17%
B.
16%
C.
13%
D.
9%
E.
10%
F.
6%
【单选题】What can be inferred from the last paragraph?
A.
It is likely to reduce the experience that the list should contain the name of any given college.
B.
The college rankings do a lot to help the student who will have to choose just one to attend.
C.
The college rankings always substitute as a sort of performance evaluation measure for the school and its employees.
D.
U.S. News has deep understanding on the response of the college rankings in various aspects.
【单选题】What is the author s opinion towards creative proposals?
A.
They are likely to get positive answers.
B.
They reveal men' s confidence.
C.
They are beautiful memories in life.
D.
They take great courage and wisdom.
【单选题】糖类是人体需要的营养物质之一 , 糖类在人体中的主要作用是
A.
是调节人体生命活动的主要物质
B.
是构建身体与修复细胞的重要原料
C.
是人体内重要的储存能量的物质
D.
为生命活动提供所需能量 , 是主要的供能物质
【单选题】在冬季来临之前，为预防哮喘发作，患者应喷雾以下哪种药物预防支气管哮喘发作 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
特布他林
B.
麻黄碱
C.
氨茶碱
D.
色甘酸钠
E.
克伦特罗
【简答题】Answer the following questions. 1. W hat attitude results in a nation of people committed to researching, experimenting and exploring? 2. How is time treated in America? And why? 3. What is likely to ...
【单选题】—Why didn’t you ask me to help you with your work? —You are so busy. I won’t ___________ much of your time.
A.
take up
B.
take off
C.
take to
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