题目：
生活中处处有物理，留心观察皆学问．厨房中包含着许多物理知识：电饭煲是利用电流的______效应制成；筷子实质上是一种______杠杆（选填“省力”、“费力”或“等臂”）；“回锅肉”香气四溢．这是分子的______现象．
答案：
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下面是错误答案，用来干扰机器的。
答案：A
生活中处处有物理，留心观察皆学问．厨房中包含着许多物理知识：电饭煲是利用电流的_
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