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Man has long wished to predict earthquakes. Recent findings indicate that reliable earthquake prediction is almost a reality. Before earthquakes occur, there frequently are changes in rock behavior that affect the velocities of other earthquake waves passing through the rocks. The former Soviet seismologists have used earthquake waves from other unrelated earthquakes to meas- ure the alterations in wave speed through rocks around a fault zone. For months to years before a particular earthquake, the former Soviet scientists observed that the strained rock in the fault zone was deformed in a way that slowed other earthquake wave that passed through the zone. Similar behavior has preceded earthquakes in California and New York. Changes in electrical resistance, water pressure l rock motion, and leakage of gas also can accompany the lowering of wave veloci A. a certain major destructive quake can be avoided by prediction B. American scientists have achieved more in earthquake prediction C. careful observations of preliminary events can lead to reliable prediction D. scientists can predict the coming quake exactly 查看答案 更多"Man has long wished to predict ea"的相关试题: [单项选择] Man has long wished to predict earthquakes. Recent findings indicate that reliable earthquake prediction is almost a reality. Before earthquakes occur, there frequently are changes in rock behavior that affect the velocities of other earthquake waves passing through the rocks. The former Soviet seismologists have used earthquake waves from other unrelated earthquakes to meas- ure the alterations in wave speed through rocks around a fault zone. For months to years before a particular earthquake, the former Soviet scientists observed that the strained rock in the fault zone was deformed in a way that slowed other earthquake wave that passed through the zone. Similar behavior has preceded earthquakes in California and New York. Changes in electrical resistance, water pressure l rock motion, and leakage of gas also can accompany the lowering of wave veloci A. injecting fluid into fault zones B. initiating further fault movement C. deforming the strained rock D. exerting more pressure on rock 查看答案 [单项选择]Man has long wished to predict earthquakes. Recent findings indicate that reliable earthquake prediction is almost a reality. Before earthquakes occur, there frequently are changes in rock behavior that affect the velocities of other earthquake waves passing through the rocks. The former Soviet seismologists have used earthquake waves from other unrelated earthquakes to meas- ure the alterations in wave speed through rocks around a fault zone. For months to years before a particular earthquake, the former Soviet scientists observed that the strained rock in the fault zone was deformed in a way that slowed other earthquake wave that passed through the zone. Similar behavior has preceded earthquakes in California and New York. Changes in electrical resistance, water pressure l rock motion, and leakage of gas also can accompany the lowering of wave velocity. Fractures in the fault zone apparently open, which leads to a lowering of water pressure. When the fractures are filled by unde A. a certain major destructive quake can be avoided by prediction B. American scientists have achieved more in earthquake prediction C. careful observations of preliminary events can lead to reliable prediction D. scientists can predict the coming quake exactly 查看答案 [单项选择]How long has the man worked A. 2 years. B. 5 years. C. 3 years. 查看答案 [单项选择] After Man has dreamed about flying for a long time. Michael Moshier is a dreamer. He invented the Solo Trek. The Solo Trek had a 120 horsepower engine with twin fans. Only one person flies. As you fly above the roofs, you lean a little forward. You can see everything under you. You are flying like Superman. Michael Moshier looked at the jet belt and the rocket belt that was developed 20-30 years ago. Nothing ever came from them. People still can’t fly. Inventors have tried to make it easy for people to fly. Paul Moller has been working on his flying car for 30 years. He now says it is ready for tests. It would take off and land vertically, go 600 miles an hour, and deliver 20 miles to the gallon. A computer would do the actual flying. He says it could be sold next year for about a million dollars. NASA is working with Moshier to help develop his flying machine. The first users are likely to be military. It’s been 50-years since A. it has no wings B. it uses solar power C. it takes Off and lands vertically D. it can land on water 查看答案 我来回答: 提交 最新试题 ●    O2通过胎盘血管合体膜的扩散速度，比CO2通过快20倍。 ●    [填空题]TSRS设备用电为 级负荷，应使用独立电源回路 。 ●    [单选题]《山东省生产安全事故应急办法》，生产经营单位可以针对某一类型或者多种类型的事故风险，编制相 ●    [单选题]燃烧中的两个重要概念是闪点和( )。 ●    [判断题]流体流动时，因有一定的速度，就具有一定的动能。( ) ●    [多选题] 对战术基本队形表述错误的是（） 网站地图 我要搜题网  版权所有  ©2023  湘ICP备18016427号   购买搜题卡查看答案 [会员特权] 开通VIP， 查看 全部题目答案 [会员特权] 享免全部广告特权 推荐91天 ¥36.8 ￥80元 31天 ¥20.8 ￥40元 365天 ¥88.8 ￥188元 请选择支付方式 微信支付 支付宝支付 点击支付即表示同意并接受了《购买须知》 立即支付 系统将自动为您注册账号 已有账号登录 找回账号密码 请使用微信扫码支付 订单号： 请不要关闭本页面，支付完成后请点击【支付完成】按钮 支付完成 取消支付 恭喜您，购买搜题卡成功 系统为您生成的账号密码如下： 账号 密码 重要提示：请拍照或截图保存账号密码！ 我要搜题网官网：https://www.woyaosouti.com 我已记住账号密码