Many people agree that there has never been a more splendid opening ceremony than of the

Many people agree that there has never been a more splendid opening ceremony than of the Guangzhou Asian Games in history.
A. one
B. that
C. which
D. this

A. one(答案→)B. thatC. whichD. this解析：这题考查代词的用法：that特指前面出现的单数名词，或是不可数名词，one是泛指前面出现的可数名词单数，which引导定语从句，this指代上文说的事，句意是：很多人同意在历史上没有比广州亚运会更辉煌的开幕式了。所以that是特指the opening ceremony选B。

谢谢解答

和我的回答一样，看来我也对了

C解析试题分析：A、Cl2与足量的铁反应氯气只作氧化剂，1 mol Cl2发生反应，转移的电子为2mol。A错误。B、阿伏加德罗常数是12 g 12C中含有的碳原子数。B错误。D、1.8 g重水(D2O，D为H)中含有的中子数为1.8g¸20g/mol´10´6.02×1023=5.4×1023。考点：阿伏伽德罗常数。点评：理解阿伏伽德罗常数，并注意某些特定条件或结构的特殊性。