题目

_______ we are both pretty outgoing, Pete’s better at sports. A. Though             B. So                    C. Or                    D. Because 答案：A（10，娄底8）下列有关物质的化学式、名称、俗名不完全对应的是A．NaOH氢氧化钠烧碱B．CaO氢氧化钙生石灰C．Na2CO3碳酸钠纯碱D．NaCl氯化钠食盐