可引起人类肠外感染的大肠埃希菌是
A. 肠产毒型大肠埃希菌
B. 肠致病型大肠埃希菌
C. 肠侵袭型大肠埃希菌
D. 肠出血型大肠埃希菌
E. 普通大肠埃希菌
肠杆菌科绝大多数细菌具有的结构是
A. 荚膜
B. 鞭毛
C. 芽孢
D. 异染颗粒
E. 以上均是
-Why Jane couldn't choose the table near the window？-Because It was reserved () hour ago.
A. 2
B. 1
C. 3
D. 4
How do the Chambers care for the otter pups? Choose what you see in the video.
A. They feed them.
B. They watch TV with them.
C. They teach them to swim.
D. They take them to visit schools.
E. They let them play.
F. They sleep beside them at night.
G. They give them baths.
H. They teach them to catch fish.
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