疾病主要累及的靶器官以非炎症性病理改变为主要特点的风湿病是
A．骨性关节炎
B．类风湿关节炎
C．系统性红斑狼疮
D．痛风
E．干燥综合征
参考答案：C
Was it in this very room ____ he made up his mind ____ he should break away from his family?
A．that; which
B．which; that
C．which; which
D．that; that
生态系统是由生物和非生物环境两部分组成，其中前者又包括（）、（）、（）。
