青春期功能失调性子宫出血的治疗原则是（）
A．减少月经量
B．促进子宫发育
C．止血、调整周期、促排卵
D．抗生素治疗
E．防止子宫内膜病变
参考答案：C
风湿病最具特征性的病变是
A．浆液性纤维素性心包炎B．风湿性关节炎C．风湿性心瓣膜病D．皮下风湿小结E．风湿性肉芽肿性心肌炎或心肌间质阿绍夫 (Aschoff)小体形成
Mr.Jason Matthews,______collection of pictures a valuable Rembrand was given to the nation, died last night.
A．from whom
B．from whose
C．from which
D．from what
