病历摘要：患者女，36岁，主诉反复鼻痒、打喷嚏4年，流清鼻涕，有时有鼻塞，经常伴有咳嗽。检查：鼻双下甲黏膜苍白、水肿，鼻道可见大量清水样涕。症状持续超过1个多月，每周约4、5天，影响睡眠及日常工作、生活。

标准化变应原特异性免疫治疗具有那些方面的临床效果？（）

A.过敏症状减轻或消失

B.用药量减少

C.预防疾病加重

D.预防新过敏症的发生

E.治疗结束后不再有过敏症状

F.可以不使用鼻内激素

Cost performance measurement is BEST done through which of the following ？（）

A．Asking for a percent complete from each team member and reporting that in the monthly progress report

B．Calculating earned value and using the indexes and other calculations to report past performance and forecast future performance

C．Using the 50/50 rule and making sure the life cycle cost is less than the project cost

D．Focusing on the amount expended last month and what will be expended the following month