题目

Where did you go on vacation？I spent my vacation _____ my family in Beijing. We had a good time there. Our train got to Beijing at eight in the evening. We _____ in a hotel that was near Tian'anmen Square. We got up early the next morning _____ we wanted to watch the raising ceremony(升旗仪式)in Tian'anmen Square. There were many people in the square _____ we got there. I was very _____ to watch the national flag go up. Then we went to _____ the Palace Museum(故宫)．We spent all the _____ in it.In the afternoon，we went to the Great Wall(长城)．We took a bus to go there. We were h如图是心脏结构示意图，请据图作答：（1）从心脏壁的厚薄来看，    壁最厚．（填标号）（2）⑥的名称是    ；②中流的是    血．（3）心房与心室之间，心室与动脉之间都有能开闭的    ，保证了血液能按一定方向流动．（4）有人说“人的一生中心脏不断跳动，所以心脏从不休息．”这种说法对吗？    ．（填“对”或“错”）