A:重氮化→酸化→显色→比色
B:重氮化→酸化→比色→显色
C:酸化→重氮化→显色→比色
D:酸化→重氮化→比色→显色
对下列相关知识的说法正确的是( )
自2016年9月1日起,我国国家信访局官方微信公众号正式开通运行,该公众号开通了网上信访功能,公众可以通过手机号注册后登录国家投诉受理办公室提交投诉请求,不受理匿名投诉建议。由此可见( )
①我国政府为公民投诉提供便利 ②公民应理性参与网上评议政府的活动库
③民意是正确决策的重要信息资源 ④公民网上投诉应坚持权利和义务相统一
1971年,为扭转外贸逆差,尼克松政府宣布了“新经济政策”,决定征收10%的进口附加税和暂停用美元兑换黄金。立即遭到日本和西欧共同市场的强烈反对,在联合抗美的形势下,美国被迫同意美元贬值和取消进口附加税。……西欧共同市场国家还采取了种种反对美资控制的措施。上述材料反映的社会现象是( )
根据上面内容判断正误,正确的写(T),错误的写(F). There are many clubs in our school. Let me tell you what they are. Do you like playing tennis? It's OK if you can't play tennis. Mr. Qing can teach you. Come and join the tennis club!Do you like acting? Do you like to work with other young people? Do you want to be in the school play? Come and join the acting club.Can you dance? Do you like Latin (拉丁) dance or Chinese traditional (传统的) dance? Join the dance club and dance for the Christmas (圣诞节) show. Do you like French food? Can you speak French? Do you want to learn French? Join the French club now.____ Mr. Qing can teach you French.____ If you join the acting club, you can act in the school play.____ Christmas Day is coming.____ You can learn French in the French club.____ There are three clubs in the school.
下列热力环流形式中不正确的是( )