2. 外语
  3. Often invisible, always in motion, gas is ______ of matter.

Often invisible, always in motion, gas is ______ of matter.

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问题 Often invisible, always in motion, gas is ______ of matter.
选项 A、the state is most energetic
B、istating the most energetic
C、the most energetic state
D、the state that most energetic
答案C
解析
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