下述哪项不符合单核-巨噬细胞的特点
A.细胞表面有Fc受体B.细胞表面有C3b受体C.细胞表面有抗原识别受体D.处理传递抗原信息
参考答案:C
Be careful not to ______ your bike with so many heavy bags.
A. turn off B. take off C. fall off
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