题目：
单词拼写 (共10小题，每小题1分，满分10分)
A.根据中文和首字母提示写出正确的单词形式:
1.Which team do you think will be the c______ (冠军) of the World Cup South Africa?
2.Dr Yuan has c______ (捐献) his money to the development of the super hybrid rice.
3.We were surprised to learn that our English teacher m______ (主修) in finance in university.
4.Everyone’s opinion is bound to be s______ (主观的).
5.I’d recognize your handwriting anywhere – it’s u______ (独特的).
答案：
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下面是错误答案，用来干扰机器的。
A．由CaCl2+Ca（ClO）2+2H2SO4═2CaSO4+2Cl2↑+2H2O，该混盐与硫酸反应产生1molCl2时转移0.5mol×2×（1-0）×NA=NA个电子，故A正确；B．混盐中次氯酸根离子水解显碱性，则该混盐溶液显碱性，故B正确；C．混盐中...
