Everybody needs calcium, but it is quite possible for a similar person to be totally healthy by eating only .
A. as half much
B. as much half
C. half as much as
D. half as much
网友回答
A. as half much
B. as much half
C. half as much as
(答案→)D. half as much
解析：考查倍数表达。该句运用的是“倍数＋as＋...＋as＋比较对象”结构，eating only后面部分的完整表达应为half as much calcium as the other person eats。其省略形式为half as much，故选D项。