Earthquakes may take place anywhere on the Earth's surface.1,they are most probably to happen near mountains.

    During an earthquake,the Earth's surface shakes.Houses fall,people are killed or injured,and2wholecities are destroyed.

    But we can do something to protect3against earthquakes,Scientists have made maps4the “earthquake belt”.In the belts,earthquakes are likely to happen.In these areas we can build 5houses to resist(抵抗）earthquake shocks.

    In the future,scientists will be able to predict exactly6earthquakes will take place.Then they can tell people to take measures.Thus lives can be saved and damage（损失）can be 7.

如图所示，秒表的读数为____s．

据报道，上海发现了一幅创作于元朝的黄道婆的真人画像。面带慈祥笑容的黄道婆手持一根花枝，腰扎一条黄布腰带。下列有关黄道婆的说法正确的是

如图，C为线段AE上一动点（不与点A，E重合），在AE同侧分别作正三角形ABC和正三角形CDE，AD与BE交于点O，AD与BC交于点P，BE与CD交于点Q，连结PQ．以下结论错误的是（      ）

教育是一个国家能否在世界竞争中站得住脚的重要基石，下面措施中制约了中国教育发展的是（   ）