【C14】A．candleB．mudC．somethingD．substance

【C17】A．freedomB．freeC．somethingD．money

Anti－microbial substances in fermented foods cause acidity.A．TrueB．False

___________ 查看材料A.nothingB.anythingC.somethingD.at

【C8】A．wormB．fliesC．somethingD．fly

【C9】A．anythingB．nothingC．somethingD．everything

【C16】A．wormB．fliesC．somethingD．fly