【多选题】WTO的宗旨包括:
E.
确保发展中国家,尤其是最不发达国家在国际贸易增长中获得与其经济发展水平相适应的份额
【单选题】某研究探讨氧疗对缓解妇科腹腔镜术后患者肩部疼痛的影响。研究方法是将腹腔镜术后第1天肩痛的患者随机分为试验组、对照组;对照组接受术后常规护理,试验组除常规护理外,8:00和16:00分别给予2h的吸氧。患者疼痛情况定时评分,比较两组患者肩痛情况的缓解程度。此研究属于的设计类型是()。
【判断题】奇函数加上直流后,傅氏级数中仍含有正弦分量
【判断题】奇函数加上直流后,傅氏级数中仍含有正弦分量。
【判断题】奇函数加上直流后,傅氏级数中仍含有正弦分量。
【简答题】WTO宗旨是______;主要职能是______;总部设在瑞士______.
【单选题】What was one of the things Pacific Gas and Electric did in the 1989 San Francisco earthquake?
A.
Restoring service to its 1.4 million customers within 48 hours.
B.
Writing personal letters of assurance to its 106,000 shareholders.
C.
Setting up a hotline for the employees as well as customers.
D.
Running ads in daily newspapers and weekly magazines for as long as 60 days.