【单选题】病人,男,70岁。吸烟45年,25支/天,发生间歇性无痛性肉眼血尿1周,来医院就诊。膀胱癌术后减少复发最有效的措施是
【单选题】— How is Emmy? — I have no idea. She hasn't written to me ______ we met last time. [ ]
【单选题】两个同周期简谐振动曲线如图所示. 的相位比 的相位
【单选题】听力原文:M: So how come you chose psychology? W: Well, at lust I didn't have any clear idea of what I wanted to do after university, I didn't say to myself 'I want to be a clinical psychologist or a resea...
A.
Be a researcher in the area.
B.
Be a clinical psychologist.
C.
Know how to be a problem-solver.
D.
Know more about people's behavior.
【单选题】回答 66~70 题: 据报导,美国宇航局的“雨燕”卫星日前观测到一个距地球约131亿光年的天体。该天体形成于宇宙大爆炸后的6.4亿年,是迄今人类观测到的距离地球最遥远的天体。 此次观测到的最遥远天体其实是一种伽马射线暴。美国宇航局“雨燕”观测卫星最早于 2009年4月23日观测到这一伽马暴。该伽马暴也因此被命名为“GRB090423”。天文学家通过研究发现,该伽马暴大约距离地球l31亿光年。美国...
【单选题】—How do you like Hangzhou, Mr. Lee? —I've no idea. I ______ there. [ ]