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【多选题】
树脂的性质是A.
通常为无定形固体或半固体
B.
不溶于水，也不吸水膨胀
C.
易溶于醇、乙醚、氯仿等大多数有机溶剂
D.
加热则软化、熔融，燃烧时冒浓烟，有特殊的香气或臭气
E.
将树脂的乙醇溶液蒸干，则形成薄膜状物质
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举一反三
【单选题】That building is now a supermarket. It ______ a cinema.
A.
was
B.
is used to be
C.
used to be
D.
would be
【单选题】听力原文： I'd like to share with you today my experience with a new approach to building a house. It's called Envelop Building. Essentially, What it means is that as you are building a house, you try to l...
A.
Eliminating the original vegetation from the building site.
B.
Marking the houses in an area similar to one another.
C.
Deciding where a house will be built.
D.
Surrounding a building with wild flowers and plants.
【单选题】What kind of seats did Dalong choose?
A.
The seats beside the window in the smoking area.
B.
The seats beside the window in the non-smoking area.
C.
The seats near the door.
D.
The seats inside.
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