根据所听到的内容作答_____. A)Drop the class. B)Make up the missed lessons. C)Stop taking p

在SQL中，删除视图用______。A、DROP SCHEMA命令 B、CREATE TABLE命令 C、DROP VIEW命令 D、DROP I

根据《化学品安全技术说明书 内容和项目顺序>（GB／T 16483－2008)规定，SDS是指 ____ ．A．化学

根据《化学品安全技术说明书 内容和项目顺序》（GB／T 16483－2008)规定，风险是指____．A．潜在的伤

He will officially______of race for mayor today.A．drop onB．drop overC．drop outD．drop off

Many investors may have hung onto their shares because______.A．they haven"t seen the drop

Don’t drop your cigarette butts on the floor. You could ________ fire to the house.A.