Americans eat as they actually need every day.
A. twice as much protein
B. twice protein as much twice
C. twice protein as
D. protein as twice much
网友回答
(答案→)A. twice as much protein
B. twice protein as much twice
C. twice protein as
D. protein as twice much
解析：倍数词＋as…as意为“是……多少倍”。