Clothing made of man-made fibers has certain advantages over made of natural fibers like cotton, wool or silk.
A. the ones
B. one
C. that
D. what
网友回答
A. the ones
B. one
(答案→)C. that
D. what
解析：that代指不可数名词Clothing，the ones与 one代指可数名词。人造纤维制成的衣服比用天然纤维像棉、羊毛、蚕丝制成的衣服具有一定的优势。选Ｃ