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【单选题】
吸附柱色谱法常的吸附剂是：A.
硅胶
B.
氧化铝
C.
聚酰胺
D.
以上都是
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【简答题】—Did Linda see the traffic accident? —No, no sooner __________ than it happened. A．had she gone B．she had gone C．has she gone D．she has gone
【单选题】—Did Linda see the traffic accident? —No，no sooner ________ than it happened.
A.
had she gone
B.
she had gone
C.
has she gone
D.
she has gone
【单选题】听力原文：M: Did you see the diamond ring Bill gave to Linda? W: I sure did. It must have cost him a fortune. Q: What does the woman imply about the ring? (5)
A.
Linda didn't like it.
B.
Bill lost it.
C.
It was very expensive.
D.
It was very small.
【单选题】—Did Linda see the traffic accident? —No, no sooner ____ than it happened. [ ]
A.
she had left
B.
she left
C.
did she leave
D.
had she left
【单选题】－ Did Linda see the traffic accident? － No, no sooner _____ impossible now does seem possible. [ ]
A.
had she gone
B.
she had gone
C.
has she gone
D.
she has gone
【简答题】I．（1）CH 3 OH（1）、H 2 的燃烧热分别为：725.5 kJ/mol和285.8 kJ/mol，写出工业上以CO 2 、H 2 合成CH 3 OH（1）的热化学方程式： 。 （2）右图为光电解水的装置，写出光照时半导体电极表面发生的电极反应式________。目前应用最多的半导体材料是Si，甚至有人提出硅是“21世纪的能源”，硅可作为新能源的原因可能的是 （填字母）。 a．在自然界中存...
【单选题】听力原文：M: Did you see the diamond ring Bill gave to Linda? W: I sure did. It must have cost him an arm and a leg. Q: What does the woman imply about the ring? (17)
A.
Linda didn't like it.
B.
Bill lost his arm and leg in order to get the ring.
C.
The ring was very expensive.
D.
Bill was injured.
【单选题】( 天津卷 )3. － Did Linda see the traffic accident? ( 时态 + 倒装 ) － No, nosooner than it happened.
A.
had she gone
B.
she had gone
C.
has she gone
D.
she has gone
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