题目

人体缺乏铁元素会引起的疾病是    A.骨质疏松    B.甲状腺肿大    C.贫血    D.智力低下 答案:CThe astronauts of Shen Zhou 11 will do many experiments if everything _______ well.A.is goingB.goesC.goD.went
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