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【简答题】

The Earth is surrounded by an ocean of gases we call the atmosphere. The atmosphere is important because it contains the air most living things breathe. ______ It even recycles water by returning it back to the Earth as rain. Without the atmosphere, life as we know it could not exist on Earth. The atmosphere extends about 600 kilometers (about 373 miles) above the suce of the Earth. Scientists discovered that the atmosphere is divided into layers, just like a layer cake.
  • A. The layer of the atmosphere we live in is called the Troposphere (对流层).
  • B. It also absorbs heat energy from the sun.
  • C. Air temperature and air pressure are not the same all the way up through the Troposphere.
  • D. Together they make up the remaining half of all the air that surrounds the Earth.
  • E. Scientists have discovered that the ozone layer has gotten thinner due to pollution.
  • F. It is also wise to wear sunglasses on bright days to guard against damage to our eyes.

题目标签:对流层
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【多选题】请总结大气对流层所具有的特点

A.
气温随高度的增加而降低
B.
空气对流运动显著
C.
气象要素水平分布不均匀
D.
气象要素水平分布均匀

【单选题】下列叙述中属于对流层特点的是 [     ]

A.
对流层顶高度平均距地面17—18公里
B.
由于臭氧层的存在,温度随高度增加而增加
C.
集中了大气中几乎全部水汽和杂质,天气复杂多变
D.
距地面附近,有利于反射无线电波

【多选题】对流层的特点包括()。

A.
空气温、湿度等气象要素在水平方向上分布比较均匀
B.
空气主要作水平运动
C.
气温日变辐大
D.
随高度增加风速减小
E.
水汽和尘埃含量多

【多选题】对流层的主要气象特点为()。

A.
风向、风速经常变化
B.
空气上下对流剧烈
C.
有云、雨、雾、雪等天气现象
D.
气流比较平稳,能见度较好