题目

 A teacher's________to the cause of education is worth great respect of the whole society because it brings countless benefits to the development of society. A．devotion   B．principle     C．identity       D．guidance 答案：A18．过渡带与多水带的分界大致经过（　　）A．长江一线B．秦岭-淮河一线C．大兴安岭-太行山一线D．南岭-淮河一线