商场有电视机m台,每台进价为a元,售价b元,若全部出售,共可获利______元.
(b-a)×m=m(b-a)(元),
答:共获利m(b-a)元,
故答案为:m(b-a).
几乎无中枢抑制作用的H1受体阻断剂是
A.阿司咪唑
B.苯海拉明
C.异丙嗪
D.氯苯那敏
E.茶苯海明
He hasn’t seen his mother for five years. He is forward his mother at once.
A. look; to see B. look; to seeing C. looking; to seeing