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【单选题】
根据规定，当护栏一侧距离楼地面高度为5m及以上的，护栏玻璃应使用( )。A.
钢化玻璃
B.
釉面玻璃
C.
钢化夹层玻璃
D.
防火玻璃
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举一反三
【单选题】Henry felt so hungry that he ordered a double ______ of fish.
A.
piece
B.
part
C.
portion
D.
section
【单选题】The section that follows the introduction section in a research article is the method section, but what follows the introduction section in a review article is often the:
A.
main body section
B.
discussion section
C.
conclusion section
D.
references
【简答题】世界三大音乐教学法分别是什么?
【简答题】听力原文：Who will perform. on the concert? Who will perform. on the concert? A group of ______.
【单选题】Additional heat extraction from the exhaust gases can be effected by adding an _____ section to the unit in plants.
A.
air cooler
B.
economizer
C.
injector
D.
air blower
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