【題目】本題你將聽到一篇短文。請你根據(jù)所聽內(nèi)容，完成下面的表格。每空一詞。

Smart Windows

Function(功能)

They can change from clear to dark and black again when people them.

Some Facts

●They can make the world a and comfortable place.
●People could make the windows less bright to stay cool.
●Most people spend about percent of their time indoors.
●They of smart windows could mean that more energy can be saved.

【答案】touch；clean；simply；ninety/ 90；development
【解析】【聽力原文】略

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