GPS系统由()组成。
A、GPS卫星星座
B、地面控制系统
C、GPS遥控机
D、GPS信号接收机
E、GPS显示器
参考答案:A, B, D
W: I ran into Sally the other day. I could hardly recognize her. Do you remember her from high schoolM: Yeah, she was a little out of shape back then. Well, has she lost a lot of weightQ: What does the man remember of Sally()
A. She used to be in poor health.
B. She was popular among boys.
C. She was somewhat overweight.
D. She didn’t do well at high school.
若腹穿抽出较多黄色浑浊液体,应尽早开始治疗的方法是
A.胃肠减压,输液
B.予以解痉药,缓解腹痛
C.静点抗生素
D.手术治疗
E.激素治疗