A. V架 B. 定位销 C. 定位块 D. 夹紧元件 E. 增力装置 F. 动力源
A. 动力变质岩 B. 火山岩 C. 混合岩
A. I‘m going to have another check-up. B. The results of the blood test are wrong. C. No. Just stay in bed and drink more water. D. Yes. You can go home tomorrow.
A. 正确 B. 错误