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【单选题】
火山口喷出的大量岩浆可能来源于
A.
岩石圈
B.
地壳
C.
地核
D.
软流层
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题目标签:
火山口
山口
岩浆
参考答案:
参考解析:
刷刷题刷刷变学霸
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A.
Water will flow down the hills.
B.
Poisonous gases will bereleased suddenly.
C.
A strong wind will rise from the lakes.
D.
The volcanoes will come to life.
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【简答题】阅读理解。 A volcanic eruption in Iceland has sent ash across northern Europe. Airlines have stopped or changed theflights across the Atlantic Ocean, leaving hundreds of passengers stuck in airports.Grirms...
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【单选题】The Exploding Lakes of Cameroon What comes to mind when you think of a lake You probably imagine a pretty scene with blue water, birds, and fish. For the people in the northwestern Cameroon, however,...
A.
the gases rise to the top and mix with air.
B.
people from the villages turn over the water.
C.
scientists have put in a computer system.
D.
they have more gases trapped at the bottom than other crater lakes.
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【填空题】岩浆的分异作用可分为熔离分异、结晶分异、()三种形式。
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【单选题】岩浆的成分主要是下面哪一项:()
A.
磷酸盐熔浆
B.
盐酸熔浆
C.
硅酸盐熔浆
D.
硫酸盐熔浆
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【判断题】斑状和似斑状结构都表明岩浆结晶具有阶段性。()
A.
正确
B.
错误
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【简答题】阅读理解 A volcanic eruption(喷发) 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 the airport...
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A.
急性胃溃疡
B.
胃溃疡病
C.
应激性溃疡
D.
早期凹陷型胃癌
E.
溃疡型胃癌
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