With a standard bulb, only 5% of the electricity is ______to light—the rest is wasted away as heat.

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问题 With a standard bulb, only 5% of the electricity is ______to light—the rest is wasted away as heat.

选项 A、compressed
B、conformed
C、converted
D、confined

答案C

解析 电转换成光,用convert into/to。
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本试题收录于: 英语题库普高专升本分类
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