⑴我是英国人。____
⑵很高兴见到你。____
⑶你好,我是张鹏。____
⑷你呢? ____
A. What about you ?
B. I'm from the UK.
C. Nice to meet you.
D. Hi, I'm Zhang Peng.
电阻R1、R2的I-U图线如图所示,现将R1、R2串联后接到电源上,R1消耗的电功率是6W,则R2消耗的 电功率是( )
big small elephant eyes ears so has
反比例函数y=-2x的图象在( )
若不等式组2x-a<1x-2b>3的解集是﹣3<x<2,则a+b=____