食品经营者取得《食品流通许可证》后,应当(),不得以其他形式非法转让。
A、妥善保管
B、出租
C、出借
D、涂改
参考答案:A
已知f(x)=lg(ax-bx)(a>1>b>0).
(1)求y=f(x)的定义域;
(2)在函数图象上是否存在不同两点,使过两点的直线平行于x轴?
—What do you think of that housewife?
—She is _____ of a good housekeeper, for the children’s room is always a terrible mess.
A.nobody
B.somebody
C.nothing
D.something