进食可刺激胃腺细胞分泌胃液胃液中含有胃酸及胃蛋白酶有利于消化.1胃酸可以杀灭进入胃内的细菌这属于机体的非特异性免疫这种免疫方式的 Template




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tomski进食可刺激胃腺细胞分泌胃液胃液中含有胃酸及胃蛋白酶有利于消化.1胃酸可以杀灭进入胃内的细菌这属于机体的非特异性免疫这种免疫方式的 coloring