单项选择题
Aromatherapy is a mixture oil from parts of the plants to（）
A. suit different people B. be further explored C. help the disabled D. be used externally E. have healing effects F. be promoted
单项选择题 The original experiment cannot be exactly duplicated.
单项选择题 The symptoms of the disease manifested themselves ten days later.
单项选择题 His stomach felt hollow with fear.
