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16.B脂肪酸作为营养物质为造血干细胞的增殖、分化提供能量，A正确：由造血干细胞分化形成的吞噬细胞可识别抗原，但是没有特异性，B错误；B淋巴细胞受到抗原刺激可分化为浆细胞，浆细胞分泌抗体，抵御沙门氏菌对细胞的侵染，C正确；辅助性T淋巴细胞产生的细胞因子可促进B淋巴细胞的增殖分化，D正确。

Liang Jianying,general designer of the China high-speed EMU,was born in 1972.Since she graduated in1995,she has been devoting all her time to researching into the development of the China high-speed railway.Afterwards,she invented the 300~350 km/h high-speed EMU,making it more convenient for us to get aroundquickly.It is because of her outstanding contributions to our country that China is playing a leading role in high-speed railways all over the world.As a consequence,she was awarded in 2015.However,she never shows anysigns of pride.Liang Jianying has set a good example to us.From her,I realize that we should keep on trying until werealize our dreams.