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【单选题】
含不同羟基的黄酮类化合物的酸性强弱顺序是A.
7，4'-二羟基＞7-羟基＞5-羟基＞一般酚羟基
B.
7，4'-二羟基＞一般酚羟基＞5-羟基＞7-羟基
C.
7，4'-二羟基＞4'-羟基＞-般酚羟基＞5-羟基
D.
7，4'-二羟基＞5-羟基＞7-羟基＞一般酚羟基
E.
一般酚羟基＞7-羟基＞5-羟基＞7，4'-二羟基
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【单选题】(Would) you mind (give) me (a glass of) water and (some) aspirin?
A.
Would
B.
give
C.
a glass of
D.
some
【简答题】7 glass bring me water? of you can a
【单选题】听力原文：M: Miss, could you bring me a glass of beer anti a cake, please? W: Certainly, but we have to wait until the captain has turned off the fasten-seatbelt sign. Q: Where does the conversation most l...
A.
In a restaurant.
B.
In a bar.
C.
On a jet.
D.
On an oceanliner.
【简答题】在量产阶段,()零件是指某项设计变更(ODM)或生产条件变更(工艺参数、设备、流程、关键工序等),在首次实施时所生产的零件半成品或总成。
【单选题】听力原文：M: Miss, could you bring me a glass of beer and a cake, please? W: Certainly, but we have to wait until the captain has turned off the fasten-seatbelt sign. Q :Where does the conversation most li...
A.
In a restaurant.
B.
In a bar.
C.
On a jet.
D.
On an oceanliner.
【单选题】Bring me a _____ of wine and a glass of water, please.?
A.
box
B.
bar
C.
piece
D.
bottle
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