A:who
B:which
C:whom
当x>1时,不等式x-2+1x-1≥a恒成立,则实数a的取值范围是 ( )
选择与下列单词相对应的英文。
唱歌
下列各句中加线词解释不正确的一项是( )。
She doesn't have any(一些) eggs, she wants to go shopping (去购物).