英语四级

单选题The tail whips, because the energy on each side of the body is different.

参考答案：H进入在线模考
信息明示题。题干：尾巴强烈移动是因为身体两侧的能量是不同的。题干关键词是tail whips和energy on each side of the body is different。H段提到As energy is alternately stored and released Oil both sides of the animal’s body ,the tail whips strongly back and forth．与题干吻合，故选H。

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