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【单选题】
设在 内 ,则A.
在 内 , ( 为一常数);
B.
在 内
C.
在 内 , ( 为任意常数);
D.
必存在 使 ;
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举一反三
【单选题】Choose the best answer to each of the following questions according to what is sated or implied in Text B. In dealing with the general insecure working environment, the author’s attitude is .
A.
pessimistic
B.
favorable
C.
proactive
D.
sarcastic
【简答题】生产成本明细账一般用多栏式， 制造费用明细账一般用三栏式。 ( )
【简答题】&ldquo生产成本&rdquo明细账一般用多栏式，&ldquo制造费用&rdquo明细账一般用三栏式。（）
【单选题】What is the author’s opinion about the research conclusion conducted by the Pew Research Center?
A.
The conclusion coincides with his perception about the employment of college graduates.
B.
The conclusion is too general to cover all the degrees’ employment status.
C.
The conclusion is rather authoritative to be free from any challenge.
D.
The conclusion is not scientific to be taken into consideration.
【单选题】The author’s primary objective in the passage is to______
A.
disprove the view that federal efforts to aid minority businesses have been ineffective
B.
explain how federal efforts to aid minority businesses have changed since the 1960’s
C.
establish a direct link between the federal efforts to aid minority businesses made before the 1960’s and those made in the 1980’s
D.
yze the basis for the belief that job-specific experience is more useful to minority businesses than is general management experience
E.
argue that the “social responsibility approach” to aiding minority businesses is superior to any other approach
【单选题】对于酸碱指示剂,全面而正确的说法是( )
A.
指示剂为有色物质
B.
指示剂为弱酸或弱碱,其酸式或碱式结构具有不同颜色
C.
指示剂为弱酸或弱碱
D.
指示剂在酸碱溶液中呈现不同颜色
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