皮皮学，免费搜题
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【单选题】
关于鞭毛的描述,错误的是( )A.
本质为蛋白质
B.
有抗原性
C.
细菌的运动器官
D.
多数细菌的鞭毛与致病有关
E.
通过普通染色可清楚看见
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】You _____ come, but why didn't you appear? [ ]
A.
must have
B.
should have
C.
need have
D.
ought have
【单选题】When the library doesn't have the magazine you need, you______.
A.
have to go to another library for it
B.
can ask the librarian to buy a copy for you
C.
can ask the librarian to go to other libraries for it
D.
can borrow it from another library but don't have to go there
【简答题】影响动物采食量的因素有哪些?
【简答题】在自由采食条件下，影响采食量的动物方面因素有哪些？
【单选题】You ________here tomorrow if you have something important to do. [ ]
A.
needn't to come
B.
don't need to come
C.
needn't coming
D.
don't need coming
【简答题】采食量对动物生产效率有何影响？影响动物采食量的主要因素有哪些？
【单选题】—Have you brought with you? We won’t have time to come back. —Don’t worry. All the things we need are here, in this big bag.
A.
something
B.
anything
C.
nothing
D.
everything
【简答题】影响动物采食量的因素有哪些？
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