问题
填空题
碳的氧化物有______种,分别是______,因CO2分子比CO分子多一个______,所以二者性质有很大的______.
答案
碳的氧化物有两种,分别是CO2、CO,因CO2分子比CO分子多一个氧原子,分子的构成不同,决定了物质的性质不同.所以二者性质有很大的差别.
故答为:两,CO2、CO,氧原子,差别.
碳的氧化物有______种,分别是______,因CO2分子比CO分子多一个______,所以二者性质有很大的______.
碳的氧化物有两种,分别是CO2、CO,因CO2分子比CO分子多一个氧原子,分子的构成不同,决定了物质的性质不同.所以二者性质有很大的差别.
故答为:两,CO2、CO,氧原子,差别.
根据对话内容,从下面方框中选择适当的单词或短语填空,使对话内容完整正确。
B: Me too. A: How is your holiday? B: Great! I had a 66 holiday. I traveled to Japan with my parents. A: Really? What did you see there? B: I saw a lot of 67 ,such as Mount Fuji and Sanrio Puroland. Mount Fuji is so wonderful that all of us want to climb up to the top. And Sanrio Puroland is the Hello Kitty’s land. We also visited the Hello Kitty’s house. How lovely it is! A: You must have a great time. B: 68 . How about you? What were you doing 69 ? A: I didn’t 70 . But I had a good time staying at home .I read a lot of books. B: Oh, that’s interesting . It’s time to have lunch. I have to go. Bye. A: Bye. |