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【单选题】
耐火极限指的是对建筑构件按时间一温度标准曲线进行耐火试验，从受到火的作用时起，到失去支持能力或完整性被破坏或失去隔火作用时为止的这段时间，用( )表示。A.
秒
B.
分钟
C.
小时
D.
天数
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举一反三
【单选题】The story of Nv Wa is from ______.
A.
Classic of Mountains and Seas
B.
the Book of Changes
C.
The Book of Songs
D.
The Song of the South
【简答题】Please briefly introduce how Nv Wa creates human beings, or how Nv Wa patches up the sky.
【单选题】FueI oil discharged to the diesel engine cylinder is aomized at the___
A.
turbocharger
B.
injection nozzle tip
C.
caruretor
D.
fuel oil pump
【简答题】He 5. ______________ (marriage) his younger sister, Nv Wa,
【单选题】Nv Wa , the youngest daughter of ______, was said to transformed into a bird called Jingwei.
A.
Emperor Huang
B.
Quafu
C.
Pangu
D.
Emperor Yan
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