肠套叠复位的鉴定除X线表现外,还有下述几点
A.解紫红色粘液便
B.口服碳素6~8小时后由肛门排出
C.患者很快入睡
D.无腹块触及
E.腹部肠蠕动活跃
参考答案:B,C,D
The shop ________ at 8:00 a.m. and it ________ for ten hours every day.
A.opens; is open
B.is opened; opens
C.is open; has opened
D.opened; opens
聚乙烯比聚丙烯的抗拉、抗压强度都要好。