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【单选题】
对量筒进行读数,每次都偏高,属于()A.
方法误差
B.
仪器误差
C.
试剂误差
D.
操作误差
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【简答题】汽车的稳态转向特性可分为三种类型：（）。
【简答题】汽车的稳态转向特性可分为 、 和 三大类。
【简答题】汽车的稳态转向特性可分为（）、（）、（）三种转向特性，具有（）转向特性的汽车有良好的操纵稳定性。
【单选题】It is a level that must extend beyond purely biological needs to comprise a set of indispensable machines and social interactions.
A.
consist
B.
surround
C.
encompass
D.
confine
【单选题】—That must have been a pleasant experience. — yeah, we ourselves.
A.
have been enjoying
B.
enjoyed
C.
were enjoying
D.
had enjoyed
【单选题】The number of rowing oars that must be carried in a motor-propelled open lifeboat on a cargo vessel is ______.
A.
determined by the Master
B.
specified by the Coast Guard
C.
specified by the manufacturer
D.
None
【单选题】That's the very point__ A. that must be insisted B. which must be insisted C. that must be insisted on D. which
must be insisted upon
A.
a
B.
b
C.
c
D.
d
【单选题】What is one of the things that must be done before man can live on Mars?
A.
Its surface must be studied.
B.
Its temperature must be raised.
C.
Big spaceships must be built.
D.
Its air must be purified.
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