Silver azide does not dissolve in water or in nitric acid.叠氨化银不溶于水或硝酸.It is possible to harness the versatile chemical properties of cyanogen azide.氰化叠氮的灵活多变的化学性质是可控制的.Cupric azide is insoluble in water.叠氮化铜不溶于水....
一天早晨, 彼得的爸爸带着彼得去看金门桥.One morning, Peter's father took Peter to the Golden Gate bridge.可是,这条通道为什么叫做‘金门’ 呢 ?”But why is the opening called the Golden Gate?金门桥面一定该是金色的 吗 ?Will the Golden Gate Bridge ever be golden?...