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【简答题】
采用Q检验法对测定结果进行处理时,当Q计算 增加测定次数可以提高实验的准确度。 ph=2.08的有效数字为3位。 允许误差也称为公差,是指进行多次测定所得到的一系列数据中最大值与最小值的允许界限(也即极差)。 定量分析中产生的系统误差是可以校正的误差。 有效数字当中不包括最后一位可疑数字。
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参考答案:
举一反三
【单选题】If Joe knew anything about car mechanics, I’m sure he would help us fix the car, but he ______ even less than we do.
A.
had known
B.
would know
C.
knew
D.
knows
【简答题】Joe Biggs was a butcher. His shop was in a village in the beautiful south of England, and he 31 in it for many years while his father was there. Then when his father reached the age of 65, he stopped ...
【单选题】I saw Ken in the meeting room, he ______ Joe for the school magazine.
A.
interviews
B.
interviewed
C.
has interviewed
D.
was interviewing
【单选题】某天线的比带宽为3:1,则它的相对带宽为【】
A.
100%
B.
67%
C.
200%
D.
300%
【判断题】批量转换型配送中心配送流程十分简单,基本不存在分类、拣选、分货、配货、配装等工序,但是由于是大量进货,储存能力较强,储存及装货作业是主要配送作业环节。(    )
A.
正确
B.
错误
【单选题】Joe is not a freshman, since he lives in a fraternity, and freshmen are not allowed to live in fraternities. He also can’t be a senior, since he has not declared a major. And he can’t be a junior, bec...
A.
(1) Joe lives in a fraternity.(2) Freshmen are not allowed to live in fraternities.(3) Joe is not a freshman.(4) Joe has not declared a major.(5) Joe is not a senior.(6) I never met Joe before today.(7) If Joe were a junior, I would have met him before today.(8) Joe is not a junior.______________________∴(9) Joe is a sophomore.
B.
(1) Joe lives in a fraternity.(2) Joe is allowed to live where he lives. (suppressed premise)(3) Freshmen (first-year students) are not allowed to live in fraternities.______________________∴(4) Joe is not a freshman.(5) Joe has not declared a major.(6) All seniors (fourth-year students) have declared a major. (suppressed premise)______________________∴(7) Joe is not a senior.(8) I never met Joe before today.(9) If Joe were a junior (third-year student), then I would have met him before today.______________________∴(10) Joe is not a junior.(11) Joe is either a freshman, a sophomore, a junior, or a senior. (suppressed premise)______________________∴(12) Joe is a sophomore (second-year student). (from 4, 7, 10, and 11)
C.
(1) Joe lives in a fraternity.(2) Joe is allowed to live where he lives. (suppressed premise)(3) Freshmen (first-year students) are not allowed to live in fraternities.______________________∴(4) Joe is not a freshman.______________________∴(5) Joe is a sophomore (second-year student).(6) Joe has not declared a major.(7) All seniors (fourth-year students)have declared a major. (suppressed premise)______________________∴(8) Joe is not a senior.______________________∴(9) Joe is a sophomore.(10) I never met Joe before today.(11) If Joe were a junior (third-year student), then I would have met him before today.______________________∴(12) Joe is not a junior.______________________∴(13) Joe is a sophomore.
【简答题】阅读理解 It amazed me-every time I saw Joe he was smiling.It didn't matter whether he had to stop at a stop light,or if he was the sh person in line at the bank,and the teller (出纳员) ended her job jus...
【单选题】休克扩容时以下哪种情况提示血容量不足,可加快输液
A.
CVP<0.49kPABP降低
B.
CVP正常BP正常
C.
CVP>1.47kPABP降低
D.
CVP>1.47kPABP正常
E.
CVP正常BP降低
【单选题】Hey there, Joe, What's __________?
A.
going on
B.
in the way
C.
on
D.
in
【判断题】批量转换型配送中心流程,主要工序是分类-拣选-分货-配货-配装等。
A.
正确
B.
错误
相关题目:
【单选题】Joe is not a freshman, since he lives in a fraternity, and freshmen are not allowed to live in fraternities. He also can’t be a senior, since he has not declared a major. And he can’t be a junior, bec...
A.
(1) Joe lives in a fraternity.(2) Freshmen are not allowed to live in fraternities.(3) Joe is not a freshman.(4) Joe has not declared a major.(5) Joe is not a senior.(6) I never met Joe before today.(7) If Joe were a junior, I would have met him before today.(8) Joe is not a junior.______________________∴(9) Joe is a sophomore.
B.
(1) Joe lives in a fraternity.(2) Joe is allowed to live where he lives. (suppressed premise)(3) Freshmen (first-year students) are not allowed to live in fraternities.______________________∴(4) Joe is not a freshman.(5) Joe has not declared a major.(6) All seniors (fourth-year students) have declared a major. (suppressed premise)______________________∴(7) Joe is not a senior.(8) I never met Joe before today.(9) If Joe were a junior (third-year student), then I would have met him before today.______________________∴(10) Joe is not a junior.(11) Joe is either a freshman, a sophomore, a junior, or a senior. (suppressed premise)______________________∴(12) Joe is a sophomore (second-year student). (from 4, 7, 10, and 11)
C.
(1) Joe lives in a fraternity.(2) Joe is allowed to live where he lives. (suppressed premise)(3) Freshmen (first-year students) are not allowed to live in fraternities.______________________∴(4) Joe is not a freshman.______________________∴(5) Joe is a sophomore (second-year student).(6) Joe has not declared a major.(7) All seniors (fourth-year students)have declared a major. (suppressed premise)______________________∴(8) Joe is not a senior.______________________∴(9) Joe is a sophomore.(10) I never met Joe before today.(11) If Joe were a junior (third-year student), then I would have met him before today.______________________∴(12) Joe is not a junior.______________________∴(13) Joe is a sophomore.
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