槟榔的功效是
A.杀虫、消积、行气、活血
B.杀虫、消积、行气、止泻
C.杀虫、消积、行气、止咳
D.杀虫、消积、行气、利水
E.杀虫、、消积、行气、止痢
参考答案:D
The incomplete table above shows a distribution of scores for a class of 25 students. If the average (arithmetic mean) score for the class is 83, what score is missing from the table ?()
A. 75
B. 77
C. 81
D. 84
E. 86
漏电所产生的火花可以造成电雷管先期引爆或瓦斯爆炸。()