What is your childhood dream? Has is come true? What is you current dream? How do you think you'll realize your future dream? Give a talk for at least three minutes and submit your presentation to the system no later than March 15, 2020.
【简答题】Write formulas when names are given and write names using Greek prefixes when formulas are given. a. nitric oxide b. carbon disulfide c. N2O3 d. N2O e. SO3 f. P2O5