【判断题】【消耗次数：1】
垂直遮阳能够有效地遮挡高度角较大的、从窗户上方照射下来的阳光。它适用于南向或接近南向的窗户。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
在阳光的照射下，悬挂在墙上的太阳能小风扇快速转动，这说明（）。
①
动能可以凭空产生
②
不同形式的能可以相互转化
③
可以制造出不需要消耗能量的“永动机”
④
太阳可以提供无穷无尽的能量，不需要节约能源。
随机题目
【单选题】
His ____ argument against our proposal is based on misinformation.
①
valid
②
formal
③
principal
④
principle
【单选题】
If by any chance someone comes to see me, ask the person to leave a ____.
①
message
②
letter
③
sentence
④
notice
【单选题】
19. They lost their way in the forest, and____ made matters worse was that snow began to fall..
①
that
②
it
③
what
④
which
【单选题】
We started out early in order that we ____ there in time.
①
would get
②
ought get
③
should get
④
had to
【单选题】
The moon ____ to a large mirror which reflects the sun’s light to the earth.?
①
compares ?
②
can compare ?
③
can be compared ?
④
may compare?
【单选题】
Most electronic devices of this kind, ____ manufactured for such purposes, are tightly packed.
①
that are
②
as are
③
which is
④
it is
【单选题】
I am very ____sitting on this old, broken chair.
①
comfortably
②
uncomfortably
③
commonly
④
uncommonly
【单选题】
You can take as many as you like because they are free of ____ .?
①
fare ?
②
charge ?
③
money ?
④
pay?