x-2＜0①x+1＞0②，由①得，x＜2，由②得，x＞-1，
故此不等式组的解集为：-1＜x＜2．
-May I have_____break, mum?
Did you have_____ short one an hour ago?
A．the; the
B．a;/
C．the;／
D．a;a
否定关键词和精确否定关键词的区别有哪些？
