一次函数的图象交x轴于(2,0)交y轴于(0,3)当函数值大于0时,x的取值范围是( )。
x<2
Can you ____ it in English? --- Sorry, I can’t ____ English.
A.speak, tell
B.speak, talk
C.talk, say
D.say, speak
微波通信可以进行短距离接力通信。()