25. Before 1066, in the land we now call Great Britain lived peoples ______ two major language groups.

A．belonged to

B．belonging to

C．were belonged to

D．were belonging to

某男，19岁，车祸，胸憋，呼吸困难。右胸压痛，叩诊鼓音，呼吸音消失，心音左移，应立即

A．吸氧
B．拍胸片
C．胸腔穿刺
D．输血、输液
E．气管插管