[简答题]

Earthquakes are something that most people fear. There are some places that have few or no earthquakes. Most places in the world, however, have them regularly. Some places, like Iran and Guatemala have them frequently. Countries that have a lot of earthquakes are usually quite mountainous.
The most talked about earthquake in the United States was in San Francisco in 1906. Over 500 people died in it. The strongest one in North America was in 1964. It happened in Alaska. Some earthquakes are not always tile ones that kill the most people. In 1755, one of the strongest earthquakes ever recorded was felt in Portugal. Around 20,000 people died.
In 1923, a very powerful earthquake hit the Tokyo-Yokohana area of Japan. A hundred and forty thousand people died. Most of them died in fires which followed the earthquake.
One of the worst earthquakes ever was in China in 1976. It killed a large number of people. The worst earthquake ever reported was also in China. 40

最新试题

• ●    （）的伸长率较大，使用时有弹性，有利于吸收冲击载荷。
• ●    典型急性菌痢的临床症状是（）
• ●    生态系统中能量流动的特点是______和______。
• ●    [判断题]与停电设备有关的变压器和电压互感器，应将设备各侧断开，防止向停电检修设备反送电。
• ●    [判断题]国内安全保卫工作具有隐蔽性、长期性、尖锐性和复杂性的特点。 (　　)
• ●    有关作业人员在隧道区间与相邻车站值班员联络应使用（）。