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【单选题】
若在区间 I 上, , ,则曲线 在 I 是A.
单调减少且为凹弧
B.
单调减少且为凸弧
C.
单调增加且为凹弧
D.
单调增加且为凸弧
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举一反三
【单选题】Types of the Cause-Effect Pattern People smoke for different reasons. They may smoke because their friends circle smoke. They maybelieve that by passing cigarettes around it will be easier for them to...
A.
Single-cause-single-effectpattern
B.
Single-cause-many-effects pattern
C.
Many-causes-single-effect pattern
D.
Causal chain pattern
【单选题】Many people believe that （）.
A.
taking drugs once in a while will not be harmful
B.
a single smoke of opium will make you an addict to it
C.
the authorities are honest in dealing with the drug problem
D.
It is a heroic activity to destroy all the drugs available
【单选题】Smoking does great harm to our health. ___many people smoke in public places.
A.
Therefore
B.
However
C.
Although
D.
No matter
【单选题】缩写Hz在计算机硬件中代表( )。
A.
视频卡每秒可以处理的像素
B.
计算机每秒可以读取的扇区数
C.
计算机每秒可以写入的内存扇区数
D.
计算机处理单元每秒转过的时钟周期数
【单选题】缩写Hz在计算机硬件中代表什么()
A.
视频卡每秒可以处理的像素
B.
计算机每秒可以读取的扇区数
C.
计算机每秒可以写入的内存扇区数
D.
计算机处理单元每秒转过的时钟周期数
【单选题】Now many people smoke and get ill. So we should do something ( ) can help stop smoking.
A.
what
B.
who
C.
which
D.
that
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