和中利水宜用()。
A.生姜
B.煨姜
C.干姜
D.生姜皮
E.炮姜
参考答案:D
一个盒子里有黑、白、红三色的珠子共16颗,其中白珠子的颗数是红珠子的7倍.盒子里有黑珠子______颗.
Your room is terribly dirty; you _____ get it cleaned in two hours, or Mum will be angry. [ ]
A. can
B. might
C. must
D. may