问题
单项选择题
— Kate had won the first prize in the singing competition．
— ______ pleasant surprise this gave her classmates!
A．What
B．How
C．What a
D．HOW a
答案
参考答案：C
解析：[专家点评] 本题考查感叹句的用法。pleasant surprise是名词短语，故用what来修饰；Surprise在这里表示泛指。综合上述分析，可知本题正确答案为C。
，正电荷
，正电荷
，负电荷
，负电荷