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【单选题】
下列现象中,不能说明物体具有惯性的是
A.
射出枪膛的子弹,仍能在空中飞行;
B.
行驶中的汽车紧急刹车后,还会向前滑行一;
C.
树上熟透的苹果,沿竖直方向落下;
D.
从行驶中的汽车上跳下来的人,容易摔倒.
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【单选题】---Have you found your book yet? ---No. I’m not sure where I ___it.
A.
leave
B.
had left
C.
could have left
D.
was to leave
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【单选题】Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolisms generally remain unchanged. They will...
A.
Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.
B.
The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.
C.
The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.
D.
Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.
E.
Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.
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【判断题】企业进行长期债券投资的目的主要是为了合理利用暂时闲置的资金,调节现金余缺,获得收益。
A.
正确
B.
错误
【判断题】企业进行长期债券投资的目的主要是为了合理利用暂时闲置的资金,调节现金余缺,获得收益。
A.
正确
B.
错误
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A.
正确
B.
错误
【单选题】I have not found my book yet. I'm not sure ______ I could have done with it.
A.
why
B.
where
C.
whether
D.
what
【单选题】Many new means__________ to prevent the river ____________.
A.
have found, from polluting
B.
have found, from being polluted
C.
have been found, from being polluted
D.
has been found, from being polluted
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