题目

        excited us Chinese greatly that Liu Xiang,a Chinese,won the Olympic champion of the 110 meter hurdle race A.What                        B.That                          C.It                              D.As 答案:C 解析: 本题如选A项,其句型应为:What excited us Chinese greatly was that...。如选D项,应改为:As excited us Chinese greatly,Liu Xiang,...。B项中的that只能引导主语从句,不在句中作任何成分。如选B项,句中则缺少主语。本题中It为形主语,that引导的从句为真正的主语。(2009?漳州)三聚氰胺(C3H6N6)是一种化工原料.三鹿牌婴幼儿奶粉因掺有三聚氰胺而造成多例婴幼儿泌尿系统结石病,下列有关三聚氰胺的说法错误的是( )A.三聚氰胺中碳、氢、氮三种元素的质量比为6:1:14B.三聚氰胺中氮元素的质量分数为66.7%C.三聚氰胺是由15个原子构成D.三聚氰胺是有机化合物
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