现在稻田中有害昆虫数量明显增加，其中一个重要的原因是这些害虫的天敌青蛙大量地减少。导致青蛙数量减少的原因很可能是（　　）

自2012年2月1日起，太湖又进入了一年一度的封湖禁渔期，在接下来长达7个月的时间内，渔船进港、渔网入库，全面停捕休渔．相关部门实施该措施的主要目的是（    ）

    Hello, my name is Qin Long. I'm a student in 1big school. There are2buildings in it.

    Two classroom buildings 3on the left of the office building. My classroom is in the red classroom building.  4is next to the brown classroom building. On the 5 of the office building are the 6 and the sports hall. There are lots of books in the library. I7there on Thursday afternoon.I play basketball 8.I go to the sports hall on Friday afternoon.9 is behind the sports hall?The dining hall.We10there.The food is delicious.