A:UA>UB>O
B:UA<UB<O
C:UA=UB<O
D:UA=UB>O
下列各句中语意明确、没有语病的一句是( )
Many workers are getting into________trouble because the current situation of the factory is bad. In other words,it is hard for them to make________living.
下列各组数中,互为相反数的有( )①2和12;②-2和12;③2.25和−214;④+(-2)和(-2);⑤-2和-(-2);⑥+(+5)和-(-5)