问题
选择题
—Shall we go to the book show tomorrow?
—__________ [ ]
A. Thank you.
B. It's very nice of you.
C. That's a good idea.
D. It doesn't matter.
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—Shall we go to the book show tomorrow?
—__________ [ ]
A. Thank you.
B. It's very nice of you.
C. That's a good idea.
D. It doesn't matter.
答案：C
某同学探究函数f(x)=x+
（1）若x1x2=4，则 f（x1）______f（x2）．（请填写“＞，=，＜”号）；若函数f(x)=x+
（2）当x=______时，f(x)=x+
（3）根据函数f（x）的有关性质，你能得到函数f(x)=x+
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