在△ABC中，若∠ACB=120°，AC=BC，AB边上的高CD=3，则AC=（ ），AB=（ ），BC边上的高AE=（ ）。
2；；
John asked his mom ________.
A．where did she put his coat
B．where she put his coat
C．did she put his coat where
D．where was she putting his coat
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