问题
单项选择题
已知致泻作用最强的肠毒素是（）
A.金黄色葡萄球菌肠毒素
B.志贺毒素
C.伤寒沙门菌产生的肠毒素
D.霍乱毒素
E.ETEC产生的肠毒素
答案
参考答案：D
解析：霍乱弧菌产生的霍乱毒素是已知致泻作用最强的肠毒素。
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已知致泻作用最强的肠毒素是（）
A.金黄色葡萄球菌肠毒素
B.志贺毒素
C.伤寒沙门菌产生的肠毒素
D.霍乱毒素
E.ETEC产生的肠毒素
参考答案：D
解析：霍乱弧菌产生的霍乱毒素是已知致泻作用最强的肠毒素。
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| You can tell whether a foreigner is American or English 1 the way he _2 his knife and fork when eating. 3 hold their 4 and forks in the 5 way when cutting, 6 they put the knives 7 , transfer (换) the forks to right 8 . But many English, while cutting their food in the same way as Americans, 9 transfer the fork from hand to hand. They hold their forks in the 10 hands, and their knives in their right hands while eating. | ||||
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