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【简答题】
With __________ (烟雾和蒸汽从火山口不断升起), the volcano has shown signs of life recently.
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】The Exploding Lakes of Cameroon What comes to mind when youthink of a lake? You probably imagine a pretty scene with bue water, brds, and fish. FOr the people in the northwestern Cameroon, however,the...
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.
【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.
【单选题】关于伦敦型烟雾与洛杉矶型烟雾的区别，下列说法不正确者为（）
A.
伦敦型烟雾属于硫酸型烟雾，洛杉矶型烟雾属于光化学烟雾。
B.
伦敦型烟雾白天夜间连续出现，洛杉矶型烟雾只在白天出现。
C.
伦敦型烟雾要求日光照射弱，洛杉矶型烟雾要求日光照射强。
D.
伦敦型烟雾中[O3]高，洛杉矶型烟雾中[O3]低。
E.
伦敦型烟雾多发生在冬季，洛杉矶型烟雾多发生在夏秋季节。
【单选题】胃窦部有一圆形溃疡，直径2cm，溃疡较浅，边缘不整齐，外形火山口状。其诊断最可能为（）.
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