2. 外语
  3. The gap keeps out______.

The gap keeps out______.

admin2013-09-16  9
问题 The gap keeps out______.
选项 A、heat
B、light
C、air
答案A
解析 关键词语The blinds also absorb theheat energy of the sun．This heat energy isthen removed by natural currents of air inthe gap between the glass walls．由此可知，玻璃墙之间的间隙可以隔离热量。
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