单项选择题

According to the passage, what is one disadvantage of skyscrapers that have mirrored walls

A．The exterior surrounding air is heated.
B．The windows must be cleaned daily.
C．Construction time is increased.
D．Extra air-conditioning equipment is needed.

<上一题目录下一题>

热门试题

单项选择题

Scientists are trying to find a link between pollution and ______.

A．intelligence levels
B．antisocial behavior
C．birth defects
D．divorce percentage

单项选择题

Tile author raises issues that would most concern which of the following groups

A．Electricians.
B．Environmentalists.
C．Aviators.
D．Teachers.