When coal, the______of plants, is burnt, chemical energy is changed into heat energy.

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问题 When coal, the______of plants, is burnt, chemical energy is changed into heat energy.

选项 A、remains
B、remainders
C、traces .
D、remnants

答案A

解析 词汇题。remains表示“残余”、“遗迹”、“剩余物”,如:We found the remains of a meal on thetable.我们存桌上发现了剩下的饭菜。remainder意为“剩余物”、“余数”,“其余(的人)”,如:I willgo ahead with three of you,and the remainder can wait here.我将和你们三个向前走,剩下的人可以在这里等着。trace意为“痕迹”、“踪迹”,如:They searched the building but did not find any trace of the criminal.他们搜查了这座楼房,可足没有发现一点罪犯的踪迹。remnant意为“余下的部分”。
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