钩体病的治疗措施为()
A.卧床休息输入足够的热量及液体
B.首选青霉素,剂量宜大
C.注射维生素K
D.保肝护肾
E.肺出血型应用激素治疗
参考答案:A, C, D, E
高锰耐磨钢ZGMn13经水韧处理后,即具有高硬度,故其耐磨性好。( )
I soon found that the work I was doing had already been done by someone else.________,I was wasting my time.
A.In other words
B.In a word
C.First of all
D.Believe it or not