补血荣筋丸主要用于治疗痹证之（）
A.痰瘀痹阻证
B.风湿热痹
C.痛痹
D.着痹
E.肝肾两虚证
参考答案：E
When I passed the river, I saw some children ______ on the sand.
A．play
B．were playing
C．playing
D．played
Look! ________ an eraser. [ ]
A. This's
B. It's
C. What's
D. That
