A:____
B: Hi.____?
A: No,____
B: This is an apple. Here you are.
B: It makes me tall.
A: Yes.____
A.We are hot.
B. You are tall.
C. Hello!
D. It's big.
E. Are you cold?
Let's ____(成立) a home library.
①NaOH固体 ②H2O ③NH4Cl固体 ④CH3COONa固体 ⑤NaNO3固体 ⑥KCl溶液.
下列对名著的表述,不正确的一项是 ( )
金属单质和非金属单质在一定条件下可以相互反应,生成相应的____ 或____ 。
如:Fe+S____
2Fe+3C12 ____
3Fe+2O2 ____