右侧肺不张或粘连性胸膜炎时，触诊心尖搏动的位置变化是（）
A．向上移位
B．向左移位
C．向左下移位
D．向右移位
E．向下移位
参考答案：D
《素问·阴阳应象大论》认为，最难治的是（）
A.治皮毛
B.治肌肤
C.治筋脉
D.治六腑
E.治五脏
In contrast to the new teachers, the middle-standing and veteran teachers seem to have made a remarkable improvement in their ability to ______.
A．be fair to any pupil
B．evaluate pupils' progress
C．present materials clearly
D．understand and play with pupils
