Americans eatvegetables per person today as they did in 1910.A. more than twiceB. as twice

问题补充：

Americans eatvegetables 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 many

答案：

(答案→)A. more than twice

B. as twice as many

C. twice as many as

D. more than twice as many

解析：A[解析]more than twice表示数量，放在as … as结构前，是……的两倍多。美国人现在每人所吃的蔬菜是19的两倍多。