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【简答题】
函数的单调性也可以叫做函数的增减性。当函数的()在其定义区间内增大(或减小)时,函数值也随着增大(或减小),则称该函数为在该区间上具有单调性。
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反馈参考答案：
举一反三
【简答题】教师是人类灵魂的（），是人类文明的（）。
【单选题】What problems does Jason Smith think radio causes?
A.
It has too many programs for advertising.
B.
It makes husbands talk little to wives.
C.
It gives too much loud music.
D.
Its noise does harm to our ears.
【单选题】每个儿童都有不受暴力侵犯、得到保护的权利。这项权利要得到保障就需要______。1来自社会的保障2我们自主的宣传和维护3非联合国保护不可4制定相关的法律法规
A.
①②③
B.
①②④
C.
①③④
D.
①②③④
【单选题】What does Jason advise Kelly to do?
A.
To give a gift to the neighbors.
B.
To complain frankly.
C.
To talk strategically.
D.
To keep the kids asleep as she can.
【单选题】What problem does Jason have?
A.
He has been extremely down recently
B.
He is not very fond of going to school
C.
He has been depressed for a long time
D.
He is not able to get himself out of bed
【单选题】下列关于结肠结构的描述中,错误的是()
A.
有皱襞，无绒毛
B.
肠腺长，排列紧密
C.
固有层可见孤立淋巴小结
D.
上皮及肠腺内含少量杯状细胞
E.
外膜中有肠脂垂
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