已知32+m=27•3n,当m=4时,n等于( )
A.0
B.3
C.4
D.-4
∵32+m=27•3n,m=4,
∴36=33+n,
则3+n=6,
解得:n=3.
故选:B.
— Sorry to have hurt you.
— _______. You didn't mean to , did you?[ ]
A. Don't say so
B. Take it easy
C. OK
D. Forget it
鱼类靠什么来叫声音()。
A.外耳
B.内耳
C.天耳
D.耳鼻