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【判断题】
瞬时极:与观测瞬间相对应的自转轴所处的位置,称为该瞬时的地球极轴,相应的极点称为瞬时极。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【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...
【简答题】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 her sto...
【单选题】. You’ll have to_____the word in the dictionary.
A.
hunt for
B.
hunt out
C.
hunt up
D.
hunt down
相关题目：
【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