2016年1月6日，朝鲜再次进行核试验，国际社会坚决反对。反对的呼声表明（    ）

①和平与发展是当今时代的主题

②朝鲜核试验威胁和破坏了世界和平

③争取和维护世界和平仍需世界人民的共同努力

④国际社会必须合作才能实现同步发展

阅读理解
   Betty is an American school girl. She is very happy because her parents will take her to China for a visit. They are going to fly from New York on June 30 and get to Beijing on July 1. They will stay at Lido Holiday Inn. Their Chinese friends will show them around Beijing. They are going to visit the Palace Museum, the Summer Palace, the Temple of Heaven and the Great Wall. They will also visit some Chinese homes and try some Chinese food. They will spend a week in Beijing and then go to Xi’an, Guilin and some other places for sightseeing. The whole trip will take three weeks and she is sure she will have a great time in China.