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在四个选项中,只有蜡烛的火焰自身能够发光.其他物体都是反射光线.
故选C.
点评:
本题考点: 光源.
考点点评: 本题考查光源的定义.
1年前
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下列属光源的是( )A. 干电池B. 月亮C. 蜡烛D. 太阳
1年前1个回答
你能帮帮他们吗
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