鸡血藤髓部的特点是
A．中央髓部较大
B．中央髓部较小
C．髓部较大，偏向一侧
D．髓部小形，偏向一侧
E．髓部不明显
参考答案：D
Sue, it's your turn _ _ the room. [ ]
A. cleans
B. to clean
C. cleaning
叠印
