Jiaozi is the Chinese name of dumplings. We have all kinds of dumplings with meat or vegetables in it. Jiaozi is very delicious and it is very popular (受人喜爱的) in China, especially (尤其) during Spring Festival. People usually eat jiaozi on the eve of Spring Festival. Why do people like eating jiaozi? Because Spring Festival is Chinese New Year. People eat round jiaozi to show their wishes for good luck. The history of jiaozi is about 2, 000 years. Eating jiaozi is a very happy thing. When all the families make jiaozi together, you'll feel very happy.

原始大气中没有氧气．（判断对错）

“一个君主的臣民，不得到君主的允许，便不能抛弃君主政体，返回乌合之众的混乱状态，也不能将他们自己的人格从承当者身上转移到另一个人或另一个集体身上。”持以上观点的思想家是(　　)

澳门和香港回归祖国后保持了经济繁荣，再次证明了“一国两制”伟大构想的强大生命力，坚定了我们用这一方法解决台湾问题的信心。“一国两制”的基本内不容包括（    ）