A.30 B.60 C.155 D.95
A.氰化鈉 B.氫氣 C.氰化鉀 D.氯化鋇
A.燃點(diǎn)低 B.對(duì)熱、撞擊、摩擦敏感 C.不會(huì)散發(fā)出有毒煙霧或有毒氣體 D.易被外部火源點(diǎn)燃,燃燒迅速