肝性脑病灌肠或导泻宜选用()。
A.液体石蜡胃内灌注(30ml)
B.肥皂水灌肠
C.开塞露肛门塞入
D.33%硫酸镁胃管内注入
E.弱酸性液灌肠
参考答案:E
The two girls are so alike that strangers find_______difficult to tell one from the other. [ ]
A. it
B. them
C. her
D. that
贸易乘数