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【多选题】
下列有关机械振动的说法正确的是()。
A.
某物体做自由振动时，其振动频率与振幅无关
B.
某物体做自由振动时，其振动频率与振幅有关
C.
某物体做曼迫振动时，其振动频率与固有频率无关
D.
某物体发生共振时的频率就是其自由振动的频率
E.
某物体发生共振时的振动就是无阻尼振动
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相关题目：
【单选题】According to the view in the lecture, as a Chinese scholar, what shouldn’t be done to traditional Chinese architecture?
A.
Inherit our traditional Chinese cultural heritage.
B.
Pass it down to our younger generations.
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