解不等式(1)得:x>-12.
解不等式(2)得:x≥2.
把不等式(1)、(2)的解集在数轴上表示得:
∴原不等式组的解为x≥2.
. We have heard so much about the Italian restaurant, but it did not _______ our expectations.
A.live up to
B.allow for
C.get away with
D.come up with
变压器重瓦斯保护应投跳闸位置,但在哪些工作开始之前应改投信号(正常后恢复)?