九年级英语阅读题一道AboydemonstrateshisinventionwhichcancutanappleintopiecesinHarbin,capitalofnortheastChina'sHeilongjiangprovince,Jan.20,2009.Aboydemonstrateshisinvention,amusicalarmclockinHarbin,capitalofnorth

　　九年级英语阅读题一道

　　AboydemonstrateshisinventionwhichcancutanappleintopiecesinHarbin,capitalofnortheastChina'sHeilongjiangprovince,Jan.20,2009.

　　Aboydemonstrateshisinvention,amusicalarmclockinHarbin,capitalofnortheastChina'sHeilongjiangprovince,Jan.20,2009

　　Aboydemonstrateshisinvention,apenwithareadingglass,inHarbin,capitalofnortheastChina'sHeilongjiangProvince,Jan.20,2009.

　　Whatcanwelearnfromthereadingsbove?

　　A.ThethreeboysallcomefromHeilongjiang.

　　B.Thethreeinventionswerealldemonstratedonthesameday.

　　选哪个?为什么不选另一个?