To save some of the human languages before they are forgotten, the students in our school started a discussion “Save Our ________”

A．Sky

B．Life

C．Arts

D．Voices

下列属于快速火灾增长类型可燃材料的是（）。

A.轻的窗帘

B.塑料泡沫

C.木制办公桌

D.厚重的木制品