We often provide our children with toys, footballs or basketballs, ______ that all children like these things. [ ]

A. thinking

B. think

C. to think

D. thought

男，47岁，因车祸致左侧6～8肋骨骨折，未发生气胸和血胸。首要护理措施应为（）。

A.胸带外固定、止痛

B.胸腔闭式引流护

C.静脉输入抗生素

D.清创

E.氧气吸入