A:ρA>ρB>ρC
B:ρA<ρB<ρC
C:ρA=ρB=ρC
D:无法判断
要使代数式 x+1x 有意义,则x的取值范围是____.
Speak aloud, please! I can ______ hear you.
I wonder how they are going to explain for losing three games ________.