题目

我国牧区与农耕区的分界线大致相当  （    ） A．地势第一、第二级阶梯分界线    B．400毫米等降水量线 C．季风区与非季风区分界线        D．外流区与内流区分界线 答案：B What the remote areas need ____ education to children and what the children need ____ good textbooks at the moment. A．is; are B．are; is C．was; were D．were; was