题干
---- Did you enjoy yourself at the party?
---- Yes. I have never been to ______ one before.
A：a more excited
B：the most excited
C：the most exciting
D：a more exciting
答案(点此获取答案解析）
D
”、“ 
”分别表示不同元素的原子。下列对图示模型理解正确的是（ ）