当重量减小时，（）最大航程系数增加。

A. go into place as the raft is inflated
B. be put up after everyone is aboard
C. be put up only in severe weather
D. be used as a sail if the wind is blowing

A. 一般的化脓菌感染
B. 特异性感染
C. 原发性感染
D. 伤口邻近的感染
E. 远离伤口的感染

A. 鼻息肉
B. 咽炎
C. 颌间固定
D. 鼻窦炎
E. 上呼吸道梗阻