下列哪项检查对明确诊断最有帮助
A. X线摄片检查
B. 肌电图检查
CT和MRI检查
D. 关节镜检查
E. 核素扫描检查
What is the main idea of the news item?
A. The Renren"s achievement in the international markets.
B. The popularity of the social network websites.
C. The history of Renren and its present situation.
D. The shares of Renren have risen a lot recently.
女性,50岁。左肩疼痛,向左上臂放射,伴肩关节活动受限1月余,加重,夜间痛影响睡眠7天。既往有左肩部外伤史。查体:左肩部肌肉萎缩,肩关节活动受限,尤其是左上肢外展和旋转时较甚。肩前有局限性按痛点,畸形不明显。
最可能的诊断是
A. 左肩关节软组织挫伤
B. 左肩风湿性关节炎
C. 左肩部肌肉劳损
D. 左肩关节周围炎
E. 颈椎病
With the system in cell phones, what kind of information could people receive?
A. Natural disasters and man-made attacks.
B. Technological catastrophes.
C. Urgent warnings about fires and flood.
D. Anti-government demonstrations.