第三代IFP(Regen C)连续重整再生工艺中,氯化区氧含量一般控制在()。
A、0.5-0.8%(v)
B、4-6%(v)
C、6-8%(v)
D、10-20%(v)
参考答案:D
I don't think it's good to copy other's homework.You should ________ it.[ ]
A.get over
B.get on
C.get up
D.get off
直流电压表一般由磁电式直流电流表与一高阻值电阻并联组成。( )