试题与答案

免疫细胞能够识别抗原的重要原因是()。 A.免疫细胞表面存在蛋白质载体 B.免疫细胞

题型:单项选择题 A1/A2型题

题目:

免疫细胞能够识别抗原的重要原因是()。

A.免疫细胞表面存在蛋白质载体

B.免疫细胞内含有抗原的遗传物质

C.抗原物质表面具有特定的化学基团

D.抗原物质是特定的蛋白质

E.免疫细胞与抗原同类

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D解析:解答:以睾丸酮为代表的雄激素类药物除有促进男性性征和性器官发育与成熟作用之外,尚有同化作用,即促进蛋白质合成代谢,减少蛋白质分解,从而促进生长发育,有些睾丸酮衍生物(如苯丙酸诺龙,...

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