灭火的基本方法包括（）几种。
A.冷却法灭火
B.窒息法灭火
C.隔离法灭火
D.抑制法灭火
参考答案：A, B, C, D
They will build nature reserves _____ protecting ______ birds.
A．to; in danger
B．for; endangered
C．to; endangered
D．for; in danger
