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【多选题】
对风管的描述错误的有 () 。A.
的布置要考虑运行调节和阻力平衡
B.
空调风管断面一般采用矩形
C.
风管材料只能是镀锌钢板
D.
一般布置在吊顶内、建筑的剩余空间、设备层
E.
风管材料只能是复合材料
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举一反三
【单选题】How does the Georges Building differ from nearby buildings?
A.
It is made from different materials.
B.
It is made from a different architectural style.
C.
It is larger than the other buildings.
D.
It is a much taller building.
【单选题】To understand the culture of different places, especially ______ containing as many different subcultures as the United States, is necessary for everyone in today's internet world.
A.
one
B.
the one
C.
that
D.
such
【单选题】I have to show you. [ ]
A.
different something
B.
something different
C.
anything different
D.
different anything
【简答题】一台三相二极异步电动机,如果电源的频率 f 1 =50Hz ,则定子旋转磁场每秒在空间 转 转。
【简答题】高合金钢是指合金元素总含量高于 的合金刚。
【单选题】In the last paragraph, the author's attitude is that ______.
A.
different people have different ideas
B.
however difficult the situation is, people should unite and move forward
C.
people should go hack to work immediately
D.
people shouldn't walk with expressionless faces
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