声门裂是喉腔最狭窄的部位。()
参考答案:对
若函数y=f(x)的定义域为(0,2),则函数y=f(-2x)的定义域是( )
A.(0,2)
B.(-1,0)
C.(-4,0)
D.(0,4)
—What's this?
—______. [ ]
A. It's an tape
B. It's a tape
C. It's tapes
D. It's the tapes