胃痛在辩证时应注意辨别()
A.表里
B.寒热
C.虚实
D.气血
E.阴阳
参考答案:B, C, D
You have to be accurate in this job, because a small mistake can make a big ________. [ ]
A. difference
B. difficulty
C. trouble
D. change
第一台电子计算机是1946年在美国研制的,该机的英语缩写是( )
A.ENIAC
B.EDVAC
C.EDSAC
D.MARK