郑州-徐州高铁将于2016年7月1日正式投入运营。图为郑徐高铁线路及周边地区略图。读图，郑徐高铁正式运营后带来的主要影响有（   ）

．At the meeting they discussed different ______ to the study of mathematics.

阅读短文，判断下列句子是否正确。
    Ann went to Qingdao with her friends on her holiday. They went there by train. They went to the beautiful beach. The weather was sunny and hot. So they had great fun playing in the water.They ate lots of fresh fish for lunch. In the afternoon, they rode bikes. Jack fell off his bike and hurt his leg. So Jack stayed at the hotel and watched TV. On the second day, Ann took many pictures of the sea. And she bought some gifts for her parents. Anyway, they had a good time.

口算．

4÷5=____

0.72÷3.6=____

12÷100=____

0.75÷0.5=____

2009年7月5日晚，         发生打砸抢烧严重暴力犯罪事件，11月9日首批9名犯罪分子被执行死刑。