题目

临床常选作肌肉注射的部位是人体 A．臀的外上部                         B．上臂的前部 C．小腿的后部                         D．大腿的中部 答案：A— Are you going to Jane's party tonight?— ______? I have been looking forward to it! [     ]A. How come B. So what C. Why not D. What for