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weren’t there didn’t there haven’t there hadn’t there
Forget it. Go for it. Good luck. Never minD.
任一时刻i总大于0 任一时刻i总小于0 i值在0~Im之间变化 i值-Im~Im之间变化
Forget it Go for it Good luck Never mind
partner actress lines words
i= Im sin ω t i= Im sin(ω t+90°) i= Im sin(ω t-90°) i= Im sin(ω t+180°).
might it be could it be could it have been should it have been
i=Im sin(ω t+180°) i=Im sin(ω t-180°) i=Im sin(ω t+90°) i=Im sin(ω t-90°)
Agree with you Forget it I'm afraid not I'm sorry
would ; won’t could ; can’t might ; needn’t should ; mustn’t
Forget it Go for it Good luck Never mind
i=Im sin(ω t+180°) i=Im sin(ω t-180°) i=Im sin(ω t+90°) i=Im sin(ω t-90°)
That’s right. All right. Don’t mention it. Forget it.
Never mind Don’t mention it Forget that How come
e=Imsinωt e=ImωLsin(ωt+90°) e=ImωLsin(ωt-90°) e=ImωLtsinωt
OK! I will OK! I won’t I’m afraid I will I’m afraid I won’t
Forget it Go for it Good luck Never mind