题目内容

______is a vital energy that flows through the body, performing multiple functions in maintaining health()

A. Blood
B. Qi
C. Liquid
D. Water

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The synonym of “pandemic” is “epidemic”.()

_stands for the world health organization.()

A. WTO
B. WHO
C. AIDS
D. UN

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伯努利方程式质量守恒定律在流体力学中的一种表达方式()

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