单项选择题

It is not boring inside Bennett's new building because ______.

A．there is a telewindow on the roof projecting the outside view.
B．there are lenses and mirrors on all floors.
C．there is an array of lenses reflecting sunlight.
D．both A andC.

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热门试题

单项选择题

Why are subterranean buildings good for energy conservation

A．Because they use solar energy.
B．Because they don't need central heating.
C．Because the temperature there remains constant.
D．Because they don't need air-conditioning.

单项选择题

As a fireman, Roll Blum knows that ______.

A．fire can kill anyone very quickly.
B．fire does not kill easily.
C．fire always kills.
D．fire is impossible to fight.