男性,35岁,近1年来常出现阵发性头痛、心慌、出汗,约半小时或1小时后缓解,此次发作时来院就诊,查体:P85次/min,BP26/16kPa(195/120mmHg),心肺未见明显异常,尿糖阳性,尿儿茶酚胺阳性,留院观察,1小时后血压、心率又恢复正常,则病人的诊断最可能是()
A. 1型糖尿病
B. 原发性高血压病
C. 原发性醛固酮增多症
D. 嗜铬细胞瘤
E. 皮质醇增多症
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女,50岁。左肩疼痛1个月余,并有向左上臂放射,伴肩关节活动限制,症状逐渐加重,有夜痛甚至影响睡眠。发病前曾有外伤史,但伤时症状不明显。查体:左肩有肌肉萎缩,肩活动限制,尤其是外展和旋转较甚,肩前有局限按痛点,畸形不明显。最可能的诊断是()
A. 左肩关节软组织伤
B. 左肱骨近端不完全性骨折后
C. 左肋骨近端转移性肿瘤
D. 左肩关节周围炎
E. 颈椎病
Users at the Charleville Company began experiencing high network delays when Internet connectivity was enabled for all users. After investigating the traffic flow, you determine that peerto-peer traffic from a music download site is consuming a large amount of bandwidth. Which QoS mechanism can you implement to improve the network response time?()
A. Use CBWFQ to queue the peer-to-peer traffic into the default traffic class.
B. Use class-based WRED to randomly drop the peer-to-peer traffic during network congestions.
C. Use class-based policing to limit the peer-to-peer traffic rate.
D. Use class-based shaping to delay any excessive peer-to-peer traffic.
以下关于开放式基金的描述,错误的是() Ⅰ.开放式基金的非交易过户只适用于个人投资者,机构投资者不能进行非交易过户 Ⅱ.由于需要收取一定转换费用,开放式基金份额转换的综合费用较高 Ⅲ.开放式基金的非交易过户,是从投资者的一个基金账户转移到其名下的另一个基金账户 Ⅳ.基金持有人可以办理其基金份额在不同销售机构的转托管
A. Ⅱ、Ⅲ、Ⅳ
B. Ⅰ、Ⅱ、Ⅳ
C. Ⅰ、Ⅲ、Ⅳ
D. Ⅰ、Ⅱ、Ⅲ