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举一反三
【单选题】Many Americans harbor a grossly distorted and exaggerated view of most of the risks surrounding food．Fergus Clydesdale, head of the department of food science and nutrition at the University of Massac...
A.
They overlook the risks of the food they eat.
B.
They overestimate the hazards of their food.
C.
They are overoptimistic about the safety of their food.
D.
They overstate the government's interference with the food industry.
【多选题】有关外科手术切口感染的危险因素的描述，正确的是( )。
A.
术前使用抗生素时间短，感染危险性高
B.
术前使用抗生素时间长，感染危险性高
C.
侵入手术切口的细菌毒力强，感染危险性高
D.
手术部位剃毛比剪毛的感染危险性低
E.
术前住院时间长，感染危险性高
【单选题】某居民从市场购得新鲜野生蘑菇，食后全家人发生毒蕈中毒，表现为恶心、呕吐、腹泻、腹痛、并出现溶血性黄疸、肝脾肿大等表现，引起这种毒蕈中毒的有毒成分是（）
A.
类树脂物质
B.
毒蝇伞
C.
光盖伞素
D.
鹿花蕈素
E.
毒肽类