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【多选题】
与红细胞缗钱状形成有关的因素是（）A.
纤维蛋白原增高
B.
血液球蛋白增高
C.
红细胞表面负电荷降低
D.
血浆量太少
E.
红细胞数量太多
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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
【简答题】请根据Richard和网友的对话内容完成信息，每空一词。 Richard: I'm crazy about basketball. I play basketball for 2 hours every day. My father doesn't allow me to do so. I don't even want to talk to him. Sunny: Playing basketb...
【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.
【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
【简答题】请根据Richard和网友的对话内容完成信息,每空一词〔共5小题，每小题1分） Richard: I’m crazy about basketball. I play basketball for 2 hours every day. My father doesn’t allow me to do so. _Sunny: Playing basketball takes you too much...
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