皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【简答题】
A volcanic eruption in Iceland has sent ash across northern Europe Airlines have stopped or changed the flights across the Atlantic Ocean, leaving hundreds of passengers stuck in airports. Grimsvom is one of the largest and most active volcanoes in Europe. What makes Grimsvom different is that it lies under a huge glacier(冰川) of ice up to 12 maters thick. The hot volcano heats up the ice above it, which then forms a layer(层)of water between the glacier and the volcano This layer of water puts pressure on the volcano, keeping it stable, As the water flows out from under the glacier, the pressure lifts. The lava(岩浆) from the volcano then comes up to the surface. This is exactly what happened today. Now, airlines have to make changes to their flights so as not to fly through the clouds of volcanic ash. according to KLM, one of Europe’s biggest airlines, airplanes cannot go under the cloud or over it. Going through the cloud can result in ash getting stuck in the airplane’s engines, causing damage to the plane. The eruption has also caused problems for animals in Iceland. The volcano left ash and sharp. Glass-like rocks all over the countryside. Farmers are keeping their animals inside to stop them from eating ash—covered grass to the sharp object. 小题1:What makes Grimsvom different from other volcanoes? A.It is below ice. B.It lies under the sea C.It is the largest volcano D.It is lava affects the airlines 小题2:What keeps Grimsvom still? A.The slow flow of water. B.The low water temperature. C.The thick glacier. D.The water pressure. 小题3:Which of the following is the result of the volcanic eruption? A.People stop traveling in Europe. B.Airlines suffer from the loss of planes. C.It becomes dangerous for animals to eat outside. D.Farmers have lost many of their animals. 小题4:This text is most probably taken from________. A.a research paper B.a newspaper report C.a class presentation D.a geography textbook
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【简答题】活动方式具有高度的适应性,在执行方面能达到高度的完善和自动化的阶段是( )
【单选题】活动方式具有高度的适应性,在执行方面能达到最高度完善和自动化的阶段是( )
A.
操作定向
B.
操作模仿
C.
操作整合
D.
操作熟练
【单选题】活动方式具有高度的适应性,在执行方面能达到高度的完善和自动化的阶段是()
A.
操作定向
B.
操作模仿
C.
操作整合
D.
操作熟练
【简答题】砂浆的强度是由 龄期的每边长为 的立方体试件的 指标为依据,其强度等级符号以“ ”表示,划分为 个等级。
【单选题】曲柄摇杆机构的压力角是 。
A.
两杆推力与运动方向之间夹角的锐角
B.
连杆与从动摇杆之间所夹锐角
C.
机构极位夹角的余角
D.
曲柄与机架共线时,连杆与从动摇杆之间所夹锐角
【单选题】曲柄摇杆机构的压力角是
A.
连杆推力与从动摇杆运动方向之间所夹的锐角
B.
连杆与从动摇杆之间所夹锐角
C.
机构极位夹角的余角
D.
曲柄与机架共线时,连杆与从动摇杆之间所夹锐角
【判断题】砂浆的强度等级可用边长为70.7mm立方体试块的28天龄期抗压强度指标为依据,强度等级可用符号MU表示,单位为MPa。
A.
正确
B.
错误
【简答题】砌筑块材的强度等级符号为____,砌筑砂浆的强度等级符号为____。
【单选题】曲柄摇杆机构的压力角是
A.
连杆推力与运动方向之间所夹的锐角
B.
连杆与从动摇杆之间所夹锐角
C.
机构极位夹角的余角
D.
曲柄与机架共线时,连杆与从动摇杆之间所夹锐角
【简答题】砂浆的强度是由 龄期的立方体试件的 指标为依据,其强度等级符号以“ ”表示。
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题