人的心理实质是
A．心脏的功能
B．思维的结果
C．脑的机能
D．个性的反映
E．对事物整体属性的反映
参考答案：C
_____ a written permission, he had to write another letter to the president of the university. [ ]
A. Not giving
B. Not having been given
C. Having not given
D. Having not been given
患者腰痛以酸软为主，喜按喜揉，腿膝无力，遇劳更甚，卧则减轻。治疗应选用（）
A.牛膝
B.桃仁
C.红花
D.郁金
E.鸡血藤
