A:当甲、乙、丙分别为硫酸铵、氯化铵、硝酸铵时,X是氢氧化钠
B:当甲、乙、丙分别为盐酸、氢氧化钠、碳酸钙时,X是碳酸钠
C:当甲、乙、丙分别为氢气、木炭、一氧化碳时,X为氧化铁
D:当甲、乙、丙分别为铜、氢氧化铜、硝酸银时,X为稀盐酸
我当小裁判。
There is a zoo in our city. It's very big. In the zoo, there are many animals. Look, the birds are singing in the tree. A bear is riding(骑)a bike. A tiger is eating meat(肉). Two monkeys are climbing(爬)a tree. They are happy in the zoo.
阅读短文,判断正误。