The primary toxin associated with invasive Clostridium perfringens infection is A: neuraminidase B: alpha toxin C: hyaluronidase D: coagulase

The following belong to the protein classification is ( ). A: toxin B: enzyme C: antibiotic D: structural protein

The following are not animal poisons A: Tetrodotoxin B: Boao element C: Toad toxin D: Nux vomica

Which one is not classified as the animal poison? A: Cantharidin B: Tetrodotoxin C: Aconitum D: Toad toxin

The pathogenicity of bacterium is determied mainly by ( ) A: basic structure B: specific structure C: catabolin D: invasiveness and toxin E: invade position

下列物质中，（）属于微生物的次级代谢产物。 A: enzyme B: vitamin C: toxin D: Amino acid

群体感应在_____过程中调节细菌基因表达 A: Biofilm formation 生物膜形成 B: Toxin producing 毒素生产 C: Bioluminescense 生物发光 D: 所有选项均正确

‍群体感应在_____过程中调节细菌基因表达‌‍‌ A: Biofilm formation 生物膜形成 B: Toxin producing 毒素生产 C: Bioluminescense 生物发光 D: 所有选项均正确

​金葡菌引起的中毒性休克综合征是由于金葡菌产生中毒性休克综合征毒素-1(toxic s hock syndrome toxin -1, TSST-1)和SEA产生特异性免疫应答导致的。‍

金葡菌引起的中毒性休克综合征是由于金葡菌产生中毒性休克综合征毒素-1(toxic s hock syndrome toxin -1, TSST-1)和SEA产生特异性免疫应答导致的。