翻译：你有3个砝码：1公斤、3公斤和9公斤，以及一个托盘天平，你可以称出多少个不同的重量？
You have 3 weights:1 kg, 3 kg and 9 kg as well as an equal arm balance, as shown. How many different weight objects can you weigh with these three?
若将托盘的天平拆除，它看起来就像一个大熊猫，使称量更好玩！
The scale with tray removed looks just like a Panda Bear, making weighing more fun!
若将托盘的天平拆除，它看起来就像一个大熊猫，使称量更好玩！
The scale with tray removed looks just like a Panda Bear, making weighing more fun!
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