选择题：Our headteacher is enough about our study, and she takes everything

题目内容：

Our headteacher is______ enough about our study, and she takes everything ______.

A.serious; seriously

B.seriously; serious

C.serious; serious

D.seriously; seriously

参考答案：

答案解析：

跑步是一项有氧运动，通过跑步，我们能提高肌力，同时提高体内的基础代谢水平，加速脂肪的燃烧，养成易瘦体质．小林最近给自己制定了一个 200 千米的跑步

跑步是一项有氧运动，通过跑步，我们能提高肌力，同时提高体内的基础代谢水平，加速脂肪的燃烧，养成易瘦体质．小林最近给自己制定了一个 200 千米的跑步健身计划，他第一天跑了 8 千米，以

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