In order to keep fit, people eat vegetables per person today as they did two years ago.
A. as many twice
B. twice more than
C. twice as many
D. more than twice
网友回答
A. as many twice
B. twice more than
(答案→)C. twice as many
D. more than twice
解析：答案：C 倍数表达法。twice as many as...是……的两倍。