题目

滴有酚酞的石灰水与足量的下列物质充分反应，酚酞仍显红色的是 A．稀硫酸 B．盐酸 C．硫酸铜溶液 D．碳酸钠溶液 答案：【答案】D【解析】试题分析：酚酞试液在碱性溶液中为红色，滴有酚酞的石灰水与足量的下列物质充分反应，酚酞仍显红色，则所得的溶液仍然呈碱性，据此解答即可．A、氢氧化钙与足量的稀硫酸充分反应，生成硫酸钙和水，最后所得溶液呈中性或酸性，酚酞为无色，错误；B、氢氧化钙与足量的稀盐任务型阅读。Dear Mike,       We got your letter yesterday. Yes, we can visit you at Christmas. We wanted to spend Christmas at home, but now we are going to be with you. Jack will not be in school then.       It is cold now in New York, but it doesn't matter. Sometimes we like the snow.       We got our plane tickets. We will get to your city on the 18th. We will stay with you for two weeks. Is thatall right with you?       We'll take our favourite diets, so we can have a nice Christmas dinner.       See you soon.                                                                                                                                                  Love,                                                                                                                                      Mum and Dad 根据短文内容用适当的单词完成下面句子，每空一词。 1. This letter is from Mike's _____________. 2. In New York, it is ____________ now. 3. Mike has a brother called ____________. He is in school now. 4. Mike's parents will go to his city by ______________. 5. His parents will come back on ______________ 31st.