问题描述：
shout out
ERIC NIVISON,CNN STUDENT NEWS:Time for the Shoutout!What is the chemical symbol for lead?If you think you know it,shout it out!Is it:A) Ld,B) Fe,C) Le or D) Pb?You've got three seconds -- GO!The symbol for lead is Pb,an abbreviation of the Latin word for the element,plumbum.That's your answer and that's your Shoutout!
chemical symbol for lead?和shout out是什麽东西?
ERIC NIVISON,CNN STUDENT NEWS:Time for the Shoutout!What is the chemical symbol for lead?If you think you know it,shout it out!Is it:A) Ld,B) Fe,C) Le or D) Pb?You've got three seconds -- GO!The symbol for lead is Pb,an abbreviation of the Latin word for the element,plumbum.That's your answer and that's your Shoutout!
chemical symbol for lead?和shout out是什麽东西?
问题解答：
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