题目

阅读理解I always wanted to beextraordinarily good at something. Not just as in, Great job, Jimbo!No, I wanted to be best-in-class, awe-inspiring, tiptop: a world-famous genius,like Michael Phelps, or Mark Zuckerberg.Unfortunately, my versionof reality did not quite line up with this delusional vision. I was agood swimmer, but I peaked at the collegiate State Championships level. Myacademic record was pretty solid, but I never would have made it into one ofthose ivy-league schools.Though I rose toabove-average status in a couple of areas, the disappointing truth was that Iwould never amount下列化学用语表达正确的是（ ）A．3个钠离子--3B．2个氧原子--O2C．1个氮分子--N2D．硝酸铁--Fe（NO）3