.倍数表达法的配套练习1. Americans eat _ vegetables per person today as they did in 1910.A. more than twice B. as twice as many C. twice as many as D. more than twice as many2. After the new technique was introduced, the factory produced _ cars in 2005 as the year before. A. as twice as many B. as many twiceC. twice as many D. twice many as3. After the new reform, the output of the paper-mill is now _ as it was in 2002.A. three times as large B.