Electrical energy may be divided into two components ______ as positive and negative.

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问题 Electrical energy may be divided into two components ______ as positive and negative.

选项 A、distinguished
B、specified
C、separated
D、indicated

答案B

解析 词义辨析题。distinguish 意为“区别,辨别出”,常用于词组 distinguish…from 或 distinguish between。specify 意为“指定,详细说明”;separate 意为“把……分开”,常用于词组 separate…from;indicate 意为“指示,指出;表明,预示”等。本句大意为:电可分为正负两极。
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