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【单选题】
根据《建筑工程建筑面积计算规范》（GBIT 50353-2005）规定，有永久性顶盖的室外楼梯建筑面积的计算，正确的是（ ）。A.
按建筑物自然层的水平投影面积计算
B.
不计算建筑面积
C.
按建筑物自然层的水平投影面积的1/2计算
D.
按上层楼梯底板面积计算
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举一反三
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A.
B.
C.
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【单选题】Choose the correct definition for seniority.
A.
To think sth is true even though you are not certain about it
B.
Some advantages from working somewhere a long time
C.
Relating to the most basic and important parts of sth.
D.
Easily broken or damaged
【单选题】Some easily broken cargoes should have the symbol of
A.
keep dry
B.
keep away from heat
C.
fragile, handle with care
D.
temperature limitations
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