A、4.3 B、5.0 C、5.5 D、5.8
A、循環(huán)氫摩爾數(shù)與反應(yīng)進(jìn)料摩爾數(shù)之比 B、補(bǔ)充氫摩爾數(shù)與反應(yīng)進(jìn)料摩爾數(shù)之比 C、循環(huán)氫摩爾數(shù)和補(bǔ)充氫摩爾數(shù)之和與反應(yīng)進(jìn)料摩爾數(shù)之比 D、循環(huán)氫流量與反應(yīng)進(jìn)料的流量之比
A、95% B、95.7% C、96% D、96.8%