题目

现有25 mL 2 mol·L－1 Na2CO3和75 mL 1 mol·L－1的稀盐酸：①将Na2CO3溶液缓缓滴到稀盐酸中 ②将稀盐酸缓缓滴到Na2CO3溶液中，在标准状况下产生气体的体积情况是                                                                           ( )。 A．均为0.84 L                    B．均为0.56 L C．①>②                                   D．②>①On AIDS Day, the minister of Health Department demanded that the problems ______ paid special attention to. A．referred to beingB．referred to beC．refer to beingD．refer to be