题目内容

如果某物品需求变动的百分比恰好等于价格变动的百分比，我们则认为该物品富有需求弹性。()

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Although punctual himsef, the professor was quite used____ late for his lecture

A. to have students
B. for students’being
C. for students to be
D. to students’being

“_____Emma’s home？ Isn’t she feeling well？"“She’s still in bed with a fever.”

A. How come
B. What about
C. When
D. Where

下列各式正确的是

A. cos2＜sin1＜tanπ
B. cos2nπ＜cotπ°＜sin1
C. cos1＜cos2＜sin1
D. cos2＜cos1＜cotπ°

保教结合的主要内涵是指幼儿园的保育和教育工作有着同等重要的地位;两者必须相互结合、相互联系、相互渗透。()