原油带水的原因有哪些?
参考答案:
A.原油罐未脱水或未脱尽水,含水过大;
B.注水量过多或电脱盐界位过高,引起跳闸;
C.电脱盐效果差,水脱不出来。
It was on ________ Saturday in _______ July of 2009 that the famous scholar of Chinese traditional culture, Ji Xianlin, passed away.
A./; /
B./; the
C.a; the
D.a; a
除哪项外均为治燥剂选方用药原则
A.须辨清外燥与内燥
B.多配伍甘寒清热或益气生津之品
C.以轻宣滋润药物为主
D.宜用辛香苦寒之品
E.素体多湿者忌用