在标准状况下,一氧化碳和二氧化碳的混合气体5.6 L,如果一氧化碳的质量为5.6 g,则二氧化碳的质量为多少克?
2.2 g
用所给词的适当形式填空。
Hello! Boys and girls. I'm David. I'm a reporter from School Life Radio Station. Thank you for
1_____ (listen) to me. I'm in Australia now. It's sunny today. It's a very beautiful place 2_____ (have)
fun. There 3_____ (be) lots of people here on vacation. Some 4_____ (lie) on the beach. Others
5_____ (swim) in the sea. The water is clean and blue. Look at the group of boys 6_____ (play)
beach volleyball. They 7_____ (look) cool. A girl 8_____ (sit) under the sun umbrella and drawing
pictures. Everyone 9_____ (have) a good time! What are you doing now? I hope you can
10_____ (have) a good time, too.
触电以人体受到伤害程度不同可分为电击和()两种
A.电伤;
B.电灼;
C.电腐蚀