The relation of the earth on Its axis is responsible for the______of periods of

游客2025-04-20 20

问题 The relation of the earth on Its axis is responsible for the______of periods of light and darkness.

选项 A、alteration
B、alternation
C、alternative
D、altercation

答案 B

解析各项的意思是：alteration变更，改造，变动；alternation交替运转，轮流，间隔；alternative二中择一，可供选择的事物；altercation争吵，口角。

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