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Topics:

Cariology Life Processes Excretion Physical Activity Auditory and Vestibular Neurology Defining Health and Wellness Musculoskeletal - Clinical Movement Circulatory and Nervous System Healthy Living Meiosis and intro to Genetics Bacteria Asexual Reproduction Anatomy of the Eye How the Eyes work Health Systems

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Musculoskeletal › View

Osteonecrosis is a condition in which part of a bone dies because of the interruption of its blood supply. What is the most common cause of osteonecrosis other than fracture?

A. vessel injury

B. prior steroid therapy

C. radiation therapy

D. embolism

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Endocrine System › View

The formation of placenta 胎盘 is stimulated by

A. Testosterone 睾酮

B. Oestrogen 雌激素

C. Progesterone 孕酮

D. Follicle-stimulating hormone (FSH) 促卵泡激素

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