A. 肌肉持续酸痛 B. 难以入睡 C. 食欲大增 D. 紧张不安
A. 抗拉强度 B. 塑性 C. 硬度 D. 韧性
A. What does your father want to do? B. Who is your father? C. What is your father? D. Where is your father now?