诱发肝昏迷的因素()
A.过多使用利尿剂
B.大量放腹水
C.上消化道出血
D.进食过多蛋白质
E.经常肥皂水灌肠
参考答案:A,B,C,D,E
混凝剂采用湿发投加时,采用()投加,可不必另配计量设备。
A.重力
B.计量泵
C.干粉
D.溶解
In the preface () my book, I express my sincere gratitude to all the teachers and friends who have been of help to me during my three years' life in the university.
A.on
B.for
C.to
D.in