【正确答案】 B

【答案解析】[解析] 划线词seldom意为：很少，不常。A项slight意为：轻微的，少量的；例：The difference is so slight that I can hardly see it.差别很小，我几乎看不出来。B项rarely意为：很少地，难得；如：They were very clean, rarely argued, and were very loving.他们非常干净，很少去争论，而且很和蔼。C项originally意为：最初，起初，本来；例：This article was originally published in a magazine.这篇文章原先发表在一本杂志上。D项occasionally意为：偶尔，间或；例：Occasionally I took a furtive glance at him.我偶尔偷偷地望他一眼。故本题选B。