Danny:I'm hungry. ____!There is a restaurant.
Jenny: ____. I am not hungry. I don't want to eat.
Danny:Go with me,please!
Jenny:Okay!
Danny:I'm excited.
Jenny:Danny,please don't ____!Don't ____! Don't ____!
Danny:Okay!Okay!I walk.
下列各组铁路干线中,全为我国南北向铁路干线的是( )
函数y=2-x+1x-3中自变量x的取值范围是( )