A. suit different people B. be further explored C. help the disabled D. be used externally E. have healing effects F. be promote

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问题 A. suit different people
B. be further explored
C. help the disabled
D. be used externally
E. have healing effects
F. be promoted
The uses and benefits of aromatherapy need to______.

选项

答案B

解析 文章第四段最后两句指出,关于芳香疗法的研究还是一个未知的新课题,还需要进行更多的探索,以形成关于其用途和功效的科学结论。故本题选B。
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