若-(a-2)是负数,则a-2___(填= )0,若-[-(a+b)]是负数,则a+b___(填= )0

问题描述:

若-(a-2)是负数,则a-2___(填= )0,若-[-(a+b)]是负数,则a+b___(填= )0

-(a-2)是负数,则a-2_>__(填= )0
若-[-(a+b)]是负数,则a+b_<__(填= )0