如图14所示在探究“声音是由物体振动产生“的实验中将正在�声的音叉紧靠悬线下的轻质小球�现小球被多次弹开这样做是为了 A.将音叉 Template




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tomski如图14所示在探究“声音是由物体振动产生“的实验中将正在�声的音叉紧靠悬线下的轻质小球�现小球被多次弹开这样做是为了 a.将音叉 coloring