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【单选题】
患者女,42岁,于日前参加聚餐,昨日感到不适,今晨起发热,腹痛,水样腹泻,至下午就诊时已腹泻6次,第4次腹泻量不多,但便中有粘液样物质,色红,第五次,想泻,但无粪便排出,第六次拉出一点粘液和血,请问,最可能引起该疾病的病原体及主要致病物质是A.
肠产毒素性大肠埃希菌，肠毒素
B.
鼠伤寒沙门菌，肠毒素
C.
志贺菌，内毒素
D.
痢疾志贺菌，志贺毒素
E.
肠出血性大肠埃希菌，志贺毒素
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举一反三
【单选题】I thought you _____like something to read, so I have brought some books.
A.
may
B.
might
C.
would
D.
must
【简答题】装卸是指物品以 方向为主的空间位移。
【单选题】I thought you like something to read, so I have brought you some books.
A.
may
B.
might
C.
could
D.
mus
【简答题】装卸是指在物品空间上发生的以垂直方向为主的位移,而( )则是指物品在区域内所发生的以短距离水平方向为主的位移。
【单选题】Max said to the manager, “Sir, may I work on this project while I’m on vacation? As you well know, I have been working very hard for our company in the last eight months, and I never slack, but all wo...
A.
he was tired
B.
he has been working hard for the last eight months
C.
he wants to work on a new project
D.
he asked questions in a more appropriate way
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