题目

根据句意和中文注释，在答题卷相应的横线上，写出所给单词的正确形式。【1】Our city library is very big. Many people ___________ (借) books from it in their free time.【2】Zhu Ting works very hard in the volleyball matches and she is one of my __________ (偶像).【3】Of all the subjects, he likes __________ (地理) best.【4】His _______(原因) for being late for school makes his teacher very angry.【5】My mother gives me a _________ (特别的) present for my birthday.标准状况下,向1L1.0mol LNaOH溶液中通入17.92L CO2,充分反应后溶液中的CO32-，HCO3-的物质的量浓度之比为：A.2∶1B.1∶2C.1∶3D.1∶4