B

China has a very long history. It has many great traditional skills that have a widely influence(影响). Here we mainly talk about kites.

  The earliest mention of a kite in ancient China dates back to the 5th century BC. It was made of wood and used as a rescue signal(求救信号).

  At the time between 770 and 221 BC, Chinese kites were actually called “muyuan”. They were first invented in Shandong Province for military purposes(军事目的). The kites were used to send important messages during the Chu-Han War(203-202 BC). During the Tang Dynasty(618-907 AD), kites were made of lighter materials, such as bamboo, silk and paper. At that time, people began to fly kites for other purposes. It was believed that letting go of the kite could remove bad luck and illness.

  Today, kite-flying is an interesting and healthy activity in China. There are large kite-flying festivals held throughout the country, and kite makers can show off their skills during the festivals.

西藏的辉煌成就令人鼓舞，但与东部地区相比，差距也是明显的。要缩小这一差距，需要我们（    ）

①实施西部大开发战略，落实精准扶贫行动计划              ②巩固平等、团结、互助、和谐的新型民族关系

③东西联动，坚持以实现共同富裕为我们的中心工作      ④坚持民族平等、民族团结、各民族共同繁荣的基本原则

为了节约能源，需要提高热机的效率，下列措施中不能提高效率的是（   ）

周末，中学生晓明与父母一起逛简阳滨江路，大屏幕上显示的内容吸引了一家人的目光。仔细一看，原来是简阳市人民法院将数名失信被执行人的照片、姓名、身份证号码、欠款额度等情况公之于众。晓明听爸爸讲，这些“老赖”们不仅要遭曝光，而且还不能乘坐飞机和火车软卧、不能获贷款。