筷子的禁忌包括()。
A.迷筷
B.脏筷
C.敲筷
D.指筷
E.抢筷
F.刺筷
参考答案:A, B, C, D, E, F
38. Li Ming, as well as some of his classmates, ______voluntary work now.
A.are doing
B.is doing
C.do
D.have done
中央集权制警政管理体制以英国为代表。