Sam got wounded in the Vietnam War and he still has a hole in his leg.
A. half the size of a coin
B. a size half of a coin
C. half the size as much as a coin
D. as much as half coin
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(答案→)A. half the size of a coin
B. a size half of a coin
C. half the size as much as a coin
D. as much as half coin
解析：本题考查倍数的表达方式。倍数的表达方式有：1）A + be + 倍数 + as + 计量形容词原级 + as + B； 2） A + be + 倍数 + 计量形容词比较级 + than + B； 3）A + be + 倍数 + the + 计量名词 + of + B