风湿热的主要病变部位是（）.
A.皮肤及血管
B.皮肤及浆膜
C.心脏及皮肤
D.关节及血管
E.心脏及关节
参考答案：E
After a short rest, he came back to_______ he had stopped and continued reading.
A．where
B．which
C．in which
D．that
十字花科蔬菜病毒病又称（）、（）。
