时间Sat Jul 14 14:26:57 2018
为了解这个跑去把普物课本拿出来...
1.
a) cmL^2 / h
b) 19h^2 / (8mL^2)
2.
a) 2
b)
2, (0, 0), (1/2, 1/2)
2, (0, 0), (1/2, -1/2)
2, (1, -1), (1/2, 1/2)
2, (1, -1), (1/2, -1/2)
2, (1, 0), (1/2, 1/2)
2, (1, 0), (1/2, -1/2)
2, (1, 1), (1/2, 1/2)
2, (1, 1), (1/2, -1/2)
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