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搜题
【单选题】
可用于减小测定过程中偶然误差的方法是。
A.
对照实验
B.
空白实验
C.
校正仪器
D.
增加平行测定次数
拍照语音搜题,微信中搜索"皮皮学"使用
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举一反三
【单选题】Historically, _____ main material for making tables has been wood, but _____ metal and stone have also been used.
A.
the; the
B.
the; /
C.
/; the
D.
/; /
【单选题】----Do you think Jim will pass the Chemistry exam? ----Sure. He ______a lot of time on it.
A.
took
B.
cost
C.
paid
D.
spent
【单选题】The main purpose of the passage is to
A.
compare Stone Hill Mall with other shopping centres.
B.
introduce the unique features of the mall.
C.
discuss its strengths and weaknesses.
D.
draw attention to the inadequacies of shopping centres.
【单选题】Even when Joe was in his seventies he took part in swimming competitions, and a lot of younger people couldn't______him.
A.
keep up with
B.
keep up
C.
keep on
D.
keep off
【单选题】The main reason made Mildred Stone be famous is
A.
b ecause he was blind.
B.
because he created a new record as a blind pole vaulter.
C.
because his father cried like a baby in his mother ’ s arms.
D.
-
【判断题】对于同一独立项目进行评价时,净现值、内部收益率和获利指数指标可能会得出不同的结论。
A.
正确
B.
错误
【单选题】—I took the TOEFL. It was really hard. —______a lot before you took it?
A.
Have you studied
B.
Did you study
C.
Had you studied
D.
Do you study
【单选题】—Did you spend a lot of time looking for the lost child? —________. It took us half a month, but luckily we found him.
A.
My pleasure
B.
Absolutely
C.
Not at all
D.
Don’t mention it
【单选题】—Did you spend a lot of time looking for the missing child? —________. It took us a long time, but luckily we found him.
A.
My pleasure
B.
Absolutely
C.
Not at all
D.
Don’t mention it
【简答题】“I took part in the TOEFL. It was really hard.” “Did you ______ a lot?” A.Have you studied B.Did you study C.Had you studied D.Do you study
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