A.traffic accidents B.smoking-related desease C.murder D.all of these
A.Drug and Food B.Cancer and Health C.Food and Health D.Health and Drug
A.英语教学原则 B.英语教学目标 C.英语教学模式 D.英语教学方法
A.suddenly B.Abruptly C.Contrarily D.But
A.which B.that C.those D.ones
