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.sold
B.admitted
C.bowed to
D.yielded