Nearly three-quarters of the Earth is covered 【B1】 water, Water heats upv 【B2】 slowly than land, but once it has become warm it

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问题     Nearly three-quarters of the Earth is covered 【B1】 water, Water heats upv 【B2】 slowly than land, but once it has become warm it takes longer to 【B3】 down. If the Earth’s surface 【B4】 entirely land, the temperature at night 【B5】 ;quite quickly and night would be much 【B6】 than day, 【B7】 it is on the moon. This does 【B8】 happen in inland deserts, hundreds of miles from any 【B9】 . The climate of the continents, especially in the temperate (温带) 【B10】 , is very much affected by the oceans 【B11】 them. The areas 【B12】 to the sea have a maritime (海洋的) climate, 【B13】 rather cool summers and warm winters. The interiors (内陆) , far from the sea, have a 【B14】 climate with extremely hot summers and cold winters.
     Rain 【B15】 from the evaporation (蒸发)of rivers, seas and lakes. Even after heavy rain, the pavements(道路) in a city 【B16】 take long to dry 【B17】 the rain water evaporates into the air. In a warm 【B18】 day it evaporates very rapidly, 【B19】 warm air can absorb more moisture(水分) than cold air. But at any particular temperature, the atmosphere can hold only a certain maximum (最大) 【B20】 of water vapor.

选项 A、by
B、in
C、with
D、at

答案C

解析 be covered with为固定词组,表示“涵盖,掩盖”。故本题答案为C。
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