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【多选题】
下列关于丽江古城的描述中,正确的是( )。A.
位于云南省西北部
B.
始建于南宋末年
C.
深受中原建城礼制影响
D.
城中道路网不规则
E.
黑龙潭是古城的主要水源
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【简答题】阅读理解。 Jerry Green went to spend a year at the South Pole Station (南极站) as the only doctor in 1998 when she 47.While working at the station that March. she discovered that there was a hard lump (肿块) in...
【简答题】对于反应 3╱2 H2(g) +1╱2 N2 = NH3(g) , 当其中N2因反应消耗了0.3 mol时, 反应进度ξ(mol)为:A. 0.6 B. 0.45 C. 0.3 D. 0.2
【简答题】阅读理解。 Mr Hunt had a bookshop near a hospital. But he never went to see a doctor when he was ill. He usually just took some medicine. One day, when Mr Hunt carried a box of books in his hands, the box ...
【单选题】对于反应3H2(g)+N2(g)=2NH3(g),当其中H2(g)因反应消耗了0.3 mol时,其反应进度ξ等于( )
A.
-0.3 mol
B.
0.1 mol
C.
-0.1 mol
D.
0.3 mol
【简答题】阅读理解 Jerry went to a barber's shop and had his hair cut, but when he came out, he was not happy with the result. When his friend Jack saw him, he said in surprise, 'What has happened to your hair, Jer...
【单选题】对于反应 3/2 H 2 (g) +1/2 N 2 = NH 3 (g) , 当其中 N 2 因反应消耗了 0.3 mol 时 , 反应进度 ξ(mol) 为
A.
0.3
B.
0.45
C.
0.6
D.
0.2
【简答题】A．Catherine went to seek advice for a job. B．Mrs Hunt found a job for her daughter. C．The Careers Officer gave Catherine and her mother some advice. D．Mrs Hunt tried to convince the Careers Advisory O...
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【简答题】对于反应 3╱2 H2(g) +1╱2 N2 = NH3(g) , 当其中N2因反应消耗了0.3 mol时, 反应进度ξ(mol)为:A. 0.6 B. 0.45 C. 0.3 D. 0.2