题目

（2分）根据反应：①Zn+2HCl=ZnCl2+H2↑   ②MnO2+4HClMnCl2+Cl2↑+2H2O  ③2HCl+CuO=CuCl2+H2O，推知盐酸应当具有的性质有            。                        答案：有酸性、有氧化性和还原性解析:略 The education in China has developed _______ these days. A. quick  B. high  C. highly  D. wildly