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Gaokao Chemistry Practice Question

1.(6 分)下列说法错误的是()

  1. A.糖类化合物也可称为碳水化合物
  2. B.维生素 $\mathrm{D}$ 可促进人体对䥻的吸收
  3. C.蛋白质是仅由碳、氢、氧元素组成的物质
  4. D.硒是人体必需的微量元素,但不宜摄入过多

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