bacillus anthracis gram-positive spore forming bacteria which
淋病症状,男女有别
革兰氏染色及芽孢的染色 a gram stain of mixture of gram
炭疽杆菌(bacillus anthraci)的"灭活"样本竟然在美国实验室里开始
细菌有多种染色方法,其中最重要的是革兰氏染色法(gram's stain)
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