婴幼儿咳嗽变异性哮喘的表现是（）
A.阵发性咳嗽
B.喘息反复发作
C.犬声样咳嗽
D.喘憋明显
E.清晨发作性咳嗽，痰少
参考答案：E
拔上颌前磨牙时，不能使用扭转力。
Nor lose possession of that fair thou ow’st; Nor shall death brag thou wander’st in his shade, When in eternal lines to time thou grow’st: So long as men can breathe, or eyes can see, So long lives this, and this gives life to thee. Questions:
A. Where does the poem come from Who wrote itB. What does "lines" meanC. Interpret the poem briefly.
