问句答语匹配。( ) 1.What'syourname?( ) 2.Areyou

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问句答语匹配。

( ) 1. What's your name?
( ) 2. Are you Mr Wang?
( ) 3. Where is your nose?
( ) 4. How are you?
( ) 5. Who are you?
( ) 6. What colour do you like?

A. Here it is!
B. My name is Li Yan.
C. I'm Miss Wang.
D. I like green.
E. Yes, I am.
F. Fine, thank you.

答案

1-6: B E A F C D

问答题简答题

简述离心式压缩机润滑油汇管压力低的故障原因？

问答题

已知函数f（x）=|2x-a|+a。

（I）当a=2时，求不等式f（x）≤6的解集；

（II）设函数g（x）=|2x-1|，当x∈R时，f（x）+g（x）≥3，求a的取值范围。