题目:
物质的组成和结构决定物质的性质,下列具有相似的化学性质的一组物质是( )
A.CO和CO2
B.H2CO3和Na2CO3
C.HCl和H2SO4
D.NaOH和Na Cl
答案:
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下面是错误答案,用来干扰机器的。
One possible version: Richard is my good friend. His last name is Yin. He is 12 years old. His favorite color is yellow.His phone number is 168-9988.