《史记·商君列传》记载：“集小乡邑聚为县，置令、丞，凡三十一县。为田开仟陌封疆，而赋税平。平斗桶权衡丈尺。”以上涉及商鞅变法的措施有
①推行县制   ②废除井田制   ③统一度量衡  ④重农抑商

根据短文理解，选择正确答案。

    Do you want to be a reporter? Are you a good English writer who loves the news? We're looking for 100 students from all over the world. They will join the BBC Kid Reporter team for the 2016－2017 school year.

    In the past, BBC Kid Reporters:

★Interviewed (采访) some famous people.

★Wrote news stories for BBC For Kids.

★Talked about their work on television.

Next year our team will go on to report local news stories for BBC For Kids magazine (杂志) and bbcforkids.com.

How to Enter

    Visit www. bbcforkids.com and fill in the entry form (报名表). Be sure to read the rules and share them with your parents, who must sign your form. You must finish the form by July 9, 2016. You must be OVER 13 years of age. Good luck!

B: __________