题目内容
(请给出正确答案)
[主观题]
There is still an hour left. You don't need______.
A.hurry
B.to hurry
C.hurrying
D.hurried
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A.hurry
B.to hurry
C.hurrying
D.hurried
A.Ho≥0.35m
B.Ho≥0.40m
C.Ho≥0.45m
D.Ho≥0.50m
A.0.6Ho(Ho为平均开采深度)
B.0.7Ho(Ho为平均开采深度)
C.0.8Ho(Ho为平均开采深度)
D.0.9Ho(Ho为平均开采深度)
A.(M1,N2)
B.(M2,N1)
C.(M2,N2)
D.(M1,N1)
A.1.88
B.2.50
C.1.45
D.2.20
一维谐振子(荷电q),受到均匀外电场的作用
设它处于基态,在t=0时刻外电场突然撤走。求粒子处于谐振子HO的第n激发态的概率P (n)。
A.it seemed my journey was still
B.my journey still seemed exciting
C.I still thought my journey exciting
D.my journey was still thought to be exciting