A.13%~14% B.14%~16% C.17%~18% D.18%~19%
A.細(xì)菌污染 B.食品添加劑污染 C.化學(xué)性污染 D.有毒重金屬污染
A.1~2倍 B.1/3~1/2倍 C.v10倍以下 D.1/2~1倍