题目

School uniforms are traditional in Britain. Pupils at about 90 percent of British secondary schools wear uniforms. When every pupil in the school wears the uniform, nobody has to worry about fashion and they feel that they belong to a group. Some people believe that a school uniform can help students pay attention to schoolwork. But some schools in Britain and other countries are starting to drop the traditional uniforms. An Australian school has decided to drop its traditional school uniform, hoping new sportswear will encourage students to take part in more activities. School headmaster Elis下图是经纬网图层和中国省级行政中心图层的叠加图，图中经纬线间隔度数相等。读图，回答下列各题。小题1:经纬网的纬线间距为A．3°B．5°C．8°D．10°小题2:图上标出的经纬网格区中A．②与③都处于暖温带B．随地球自转，③的角速度比④小C．从春分到夏至，①比④的昼长变化幅度大D．从夏至到秋分，②比⑤的正午太阳高度角变化幅度大小题3:人口密度差值最大的两个网格区是A．①和④B．②和③C．③和⑤D．④和⑤小题4:从地形和降水条件分析，最易发生泥石流的网格区是A．①B．②C．④D．⑤