问题
单项选择题
下列哪项不是苯巴比妥的性质（）
A.遇过量的硝酸银生成二银盐白色沉淀，此沉淀溶于氨水中
B.弱碱性
C.钠盐易水解
D.与吡啶-硫酸铜试液反应生成紫色
E.在碳酸钠溶液中与硝酸银试液作用可生成可溶性的一银盐
答案
参考答案：B
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下列哪项不是苯巴比妥的性质（）
A.遇过量的硝酸银生成二银盐白色沉淀，此沉淀溶于氨水中
B.弱碱性
C.钠盐易水解
D.与吡啶-硫酸铜试液反应生成紫色
E.在碳酸钠溶液中与硝酸银试液作用可生成可溶性的一银盐
参考答案：B
根据短文内容，从A、B、C、D四个选项中选择一个最佳答案。 People all over the world celebrate（庆祝） the new year. However, not all countries celebrate in the same way, and in some countries, the new year doesn’t begin on the date every year. In many countries, the new year begins on 1st January, but people start celebrating on 31st December, New Year’s Eve. In New York many people go to celebrate in Times Square. they’re waiting for the New Year, they listen to music, sing traditional songs and have fun. Just before 12 o’clock, everyone down from 10: 10, 9, 8… As soon as it’s 12 o’clock, everyone shouts very , “Happy New Year!” New Year’s Day is often a family day. Some families get together for a special meal. When the weather is fine, many families go out for a . On New Year’s Day, many people make resolutions（决心） for the new year. They a list of things, such as “I will help out more with housework. I will work at school than others.” or “I won’t spend so much time playing video games.” When they have made list, they read it to their family or friends and promise （承诺）to their resolutions. So it doesn’t matter how they celebrate, people in countries all over the world, it’s a time to say goodbye to the old year, and to welcome the new.
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