57.Chen Y, Zong C, Jia J, et al (2020): A study on the protective effect of molecular hydrogen on osteoradionecrosis of the jaw in rats. Int J Oral Maxillofac Surg, 2020 May 22; S0901-5027 (20) 30156-9. doi: 10. 1016/j. ijom. 2020.0...
1. none of the doctorsknows about the matter. ___ ___ know about the matter. 2. tom is taller than john. jonh is not ___ ___ ___ tom. 3. the jacket cost solittle that he bought it. the jacket ___ ___ ___ for him to buy. 4. j...
起先,首先 most [məust] pron 大部分,大多数 luck [lʌk] n 运气,好运 April ['eiprəl] n 四月 hate [heit] v 讨厌,不喜欢,憎恨 fly [flai] v 飞,飞行,乘飞机旅行 painting ['peintiŋ] n 油画,水彩画 airport ['ɛəpɔ:t] n 航空站,飞机场 Swedish ['swi:diʃ] ad...