单选题 Suddenly the yen will take a big {{U}}fluctuation{{/U}} and wipe out that advantage we worked so hard to create, A, spring B. sling C. swing D. string
【正确答案】 C
【答案解析】spring：产生，发出；sling：掷，抛；swing：摇摆，荡；string：串起，成中。题中“fluctuation”意为“波动”，可知C选项符合题意。