菌
15．从有正常菌群存在的部位所采取的标本应接种在哪种培养基中分离培养病原菌？
A．增菌培养基
B．营养培养基
C．选择鉴别培养基
D．基础培养基
E．特殊培养基
16．衣原体与病毒的相同点是：A．含有RNA和DNA
B．有核糖体
C．严格细胞内寄生
D．二分裂方式繁殖
E．对抗生素敏感
17．新生隐球菌致病物质主要是：
A．荚膜多糖
B．芽生孢子
C．细胞壁
D．假菌丝
E．侵袭性酶
18．真菌的假菌丝是由哪种孢子延长而形成的
A．芽生孢子
B．大分生孢子
C．小分生孢子
D．关节孢子
E．厚膜孢子
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