题目

阅读理解 This is Ji Zihan. Her English name isWendy. She's 10 years old. Her birthday is on October 9th. Her hair is long andblack. She's a very nice girl. She plays Luo Qianqian in Tiger Mom(《虎妈猫爸》). She has a yellow desk. Her mother buys itfor her on her birthday. Her English book, pens and pencils are on the desk.She has a big wardrobe(衣柜), too. Her clothes are init. You can see three pairs of shorts, four hats, five skirts and two pairs oftrousers in the wardrobe. The shorts are green and purple. The hats are purple,white and yellow. The skirts are white. The two' pairs9．请你认真观察右耐心脏结构图，据图分析并回答下列有关问题：（1）在心脏的四个腔中，壁最厚收缩力最强的是[8]左心室．（2）图中标号8、10、11、12所示结构内流的血液是动脉血．（3）与心室相连，管壁厚，管腔小，弹性大且内流静脉血的血管的是[2]肺动脉．（4）在心脏的四个腔中，由于房室瓣的作用，保证了血液只能由[4]流向[6]，由[10]流向[8]，决不倒流．（5）肺循环起始于图中[6]右心室，体循环终止于图中[4]右心房．（6）小明想观察心脏瓣膜的作用，于是他将水从主动脉灌进，请你想一想，小明观察到的结果应该是，水从图中的[12]主动脉流出．