题目

请阅读下面短文,理解其大意,然后从每小题所给的A、B、C三个选项中,选出一个能填入空白处的最佳选项,并将其字母标号填入题前括号内。 The Smiths are my neighbors. They ______ a big house. Mrs. Smith is a beautiful woman. She has blue eyes and brown ______. She is a healthy and smart 35-year-old ______. She loves flower gardening (种花). Every morning she picks(摘) a flower and ______ it in her hair. Every morning, when I walk past her garden, she will get me a flower. Mr. Smith is a very nice man. He is ______ medium height and he is a 标准状况下,在四个干燥的烧瓶中分别充入:①纯净的氨气;②混有1/3体积空气的氯化氢气体;③纯净的NO2气体;④混有少量O2的NO2气体。然后各做喷泉实验。实验后,三烧瓶中溶液的物质的量浓度大小关系是(  ) A.①=②=③=④         B.①=②=③>④ C.①=②=③<④                D.④>①=②>③
英语 试题推荐