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【单选题】
下列物质不能作为基准物质的是( )A.
分析纯NaOH固体
B.
K 2 Cr 2 O 7
C.
邻苯二甲酸氢钾
D.
H2C2O4·2H2O
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反馈参考答案：
举一反三
【简答题】f(n)= 7nlogn +6×n 2 ,f(n)的渐进性态f(n)= O( )。
【判断题】Candidate B doesn't have spent a long time getting to know the products of her previous company.
A.
正确
B.
错误
【单选题】She aimed her speech at Republican front-runner Donald Trump. "When we hear a candidate for president call for rounding up 12 million _____, banning all Muslims from entering the United States, when h...
A.
emigrants; embraces
B.
immigrants; embraces
【单选题】When ______ leave for Japan？” “When ______ leave for Japan is kept secret.”
A.
they will, will they
B.
will they, they will
C.
they will, they will
D.
will they, will they
【简答题】阅读理解 Danica Patrick doesn't let anything stop her.When she's in her race car, she flies.In the spring of 2008, she became the first woman to win an in the Indy Racing League. Patrick wasn't the ...
【判断题】A citizen of Japan who moves to the United States to work at Microsoft would be classified as an inpatriate.
A.
正确
B.
错误
【简答题】A．The woman is quite satisfied with Mr. Taylor as an eligible candidate for the job. B．Mr. Taylor is experienced in operating systems. C．The woman will not contact Mr. Taylor for further consideration...
【简答题】Fill in the blanks with the expressions given. Change the form where necessary. (Exercise 6 on P50) work on apply to look back benefit from strive for make the most of introduce... to rise to the cha...
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