B. 呼吸道Р C. 螨叮咬后入血 D. 虱叮咬后入血Р E. 鼠咬伤感染Р 4. 立克次体与葡萄球菌的主要区别是Р A. 有细胞壁和核糖体 Р B. 以二分裂法繁殖Р C. 含有DNA和RNA两种核酸РРРof rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilitiesРof rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilitiesРРof rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities