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【简答题】
下列函数为单调函数的有( )． A．y=10 x B．y=3-5x C．y=arcsinx， D．y=2-lg(x+1)
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反馈参考答案：
举一反三
【简答题】阅读教材第8页关于“完全数”(完美数)的内容,并回答下列问题
【单选题】How does Amy buy clothes now?
A.
She heads straight mto the mall.
B.
She drives to a store to select items.
C.
She has a video conversation with a retailer.
D.
She sends her image to several fashion experts.
【简答题】If you want to save money, you can buy clothes that need to be dry-cleaned.
【简答题】Where do you usually buy clothes
【单选题】The first thing for you to do before you buy clothes is to read the lables inside the clothes.
A.
Right.
B.
Wrong.
C.
Doesn't say.
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