You look quite tired. You'd better _______ a good rest. [ ]

A. stop to have

B. stop having

C. to stop to have

D. to stop having

患儿，男，1岁6个月。咳嗽3天，发热1天，痰多气促，右下肺闻及少量细湿性啰音。

不符合儿童气管与支气管特点的是（）

A.相对较宽

B.软骨弹性组织缺乏

C.纤毛运动差

D.黏膜柔嫩，血管丰富

E.右支气管粗短