题目

I'll take _______, please. A. three pops                     B. three pop C. three bottles of pop           D. three bottle of pop 答案：C 下列物质都能与Na反应放出H2，其产生H2的速率排列顺序正确的是①CH3CH2OH ②CH3COOH(aq) ③H2OA. ①>②>③B. ②>③>①C. ③>①>②D. ②>①>③