以下函数值的类型是______。
fun(float x)
float y;
y=3*x-4;
return y;

A．int

B．不确定

C．void

D．float

－Look at our model of space station. Do you like it?

－Yes, it is even          than ours.

A．interesting

B．more interesting

C．most interesting

D．the most interesting