This exam is a acid test for me.
这次考试对我来说是一次严峻的考验。
Vitamin a acid and antibiotic medicines are the main measures of Western medicine to cure the common acne. But it usually has the characteristics of great minus effects and high-rate of relapse.
现代医学通常运用维甲酸及抗生素类药物治疗本病，但普遍存在着副作用大、复发率高的缺点。
To study normal white rat osteoporosis L4 vertebrae telescope viscoelasticity property caused by vitamin A acid, supply bioviscoelastic mechanics parameter with clinic.
研究正常大鼠椎骨和维甲酸所致大鼠骨质疏松L4椎骨的粘弹性性质，为临床提供生物粘弹性力学参数。
To study normal white rat osteoporosis L4 vertebrae telescope viscoelasticity property caused by vitamin A acid, supply bioviscoelastic mechanics parameter with clinic.
研究正常大鼠椎骨和维甲酸所致大鼠骨质疏松L4椎骨的粘弹性性质，为临床提供生物粘弹性力学参数。
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