Though the "No smoking" signs have existed for long in public places, heavy smokers often  them and light up cigarettes.

A．abandon

B．postpone

C．decline

D．ignore

“经营单位”栏应填（）。

A．中国五金矿产进出口总公司11069191004

B．中远集装箱运输有限公司

C．上海亿阳国际贸易有限公司

D．上海吴淞海关