某商场以每台1800元的相同价格出售两部手机,其中一部盈利20%,另一部亏损20%,则结果是盈利,还是亏损?
解:售价3600 <进价3750 ,亏损。
Look at his_____ look. It seems as if he had met a_____ tiger.
A.frightened, frightening
B.frightening , frightened
C.frightened, frightened
D.frightening , frightening
在体内经肠道吸收后,几乎全部用于辅酶A合成的维生素是()
A.维生素B1
B.烟酸
C.泛酸
D.核黄素
E.乙酸