新建钢铁联合企业，吨钢综合能耗低于( )t标煤。
A．0.5 B．0.7 C．1.0 D．1.5
参考答案：B
I'm______ building a new factory here. It will be bad for the environment. [ ]
A. to
B. for
C. with
D. against
高压隔离开关不能用来切断负载电流
