耐甲氧西林金黄色葡萄球菌(MRSA)、克雷伯氏菌等细菌能引起多种疾病和感染。同时各种抗生素往往又对它们无可奈何,这些令人

耐甲氧西林金黄色葡萄球菌(MRSA)、克雷伯氏菌等细菌能引起多种疾病和感染。同时各种抗生素往往又对它们无可奈何,这些令人色变的细菌因而被称为超级细菌。近年来,研

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What did the salesgirl probably think of Peter’s word game?

What did the salesgirl probably think of Peter’s word game?A.Old and handy. B.

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Their cheery song brightens many a winter's day. But robins

Their cheery song brightens many a winter's day. But robins are in danger of wea

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What is stressed in the last paragraph?

What is stressed in the last paragraph?A.Mothers’importance shows in family all

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从所给的四个选项中,选择最合适的一个填入问号处。使之呈现一定的规律性。(  )

从所给的四个选项中,选择最合适的一个填入问号处。使之呈现一定的规律性。(  )

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