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【简答题】
已知函数 且函数 的图象经过点（1，2）. （1）求m的值；（2）证明函数 在（1， ）上是增函数.
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举一反三
【单选题】When there’s a 52 , leave the classroom quickly. Smoke makes them 53 and they can’t breathe. It’s better to put 54 over your mouth and nose. 55 when you want to get out, you should make yourself close...
A.
anything wet
B.
something dry
C.
something wet
【单选题】When there’s a 52 , leave the classroom quickly. Smoke makes them 53 and they can’t breathe. It’s better to put 54 over your mouth and nose. 55 when you want to get out, you should make yourself close...
A.
And
B.
But
C.
So
【单选题】If you want to make friends, you first need to put yourself out() meet people.
A.
in order to
B.
in order that
C.
so that
【单选题】关于车辆使用油液,下列描述正确的是:( )
A.
API( 美国石油协会) 的发动机机油分类代表机油的粘度指数。
B.
发动机机油具有多种功能，包括润滑、冷却、清洁和密封等。
C.
齿轮油和发动机机油不同，它没有SAE( 汽车工程师协会) 或API( 美国石油协会) 的分类。
D.
可以采用一种低粘度的油作为齿轮油，因为它能承受齿轮啮合时产生的高压。
【单选题】When there’s a 52 , leave the classroom quickly. Smoke makes them 53 and they can’t breathe. It’s better to put 54 over your mouth and nose. 55 when you want to get out, you should make yourself close...
A.
smoke
B.
fire
C.
flood
【单选题】If you want to put out a fire, you may draw water from a __________ in the street.
A.
hydrant
B.
thermos
C.
spittoon
D.
basin
【单选题】When there’s a 52 , leave the classroom quickly. Smoke makes them 53 and they can’t breathe. It’s better to put 54 over your mouth and nose. 55 when you want to get out, you should make yourself close...
A.
cry
B.
cough
C.
shout
【单选题】You want to put out the fire, use
A.
fire extinguisher
B.
medicine
C.
sweater
D.
handbag
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