题干
America has more than fifty states, ______, Kentucky, is the place _______ Abraham Lincoln was born.
A：one of it; where
B：one of which; where
C：one of that; which
D：one of which; which
答案(点此获取答案解析）
B
C常用于测定动植物标本的年龄。关于
原子的说法正确的是 （ ）