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【简答题】
将五层协议的网络体系结构的要点和 各层的主要功能连线。
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反馈参考答案：
举一反三
【简答题】阅读理解。 This is a picture. In the picture you can see a school. The school is Wulong Middle School. It's very beautiful. You can see a boy and a girl, too. They are at school now. The boy is Li Gang and...
【简答题】完形填空。 This is a picture 1 mine. This is my father. 2 is 45 years 3 . This is 4 mother. She is not old. She is 5 teacher of English. This is my good friend. His 6 is Jim. He is 7 . He is four. He i...
【单选题】This is a picture. It's a classroom(教室). It's a nice room. In the picture, we can see five desks and six chairs(椅子). You can see a girl and two boys, too. Three books are on a desk. A pencil-box is on...
A.
a boy and a girl
B.
a pen and two rulers
C.
a classroom
【简答题】阅读理解。 This is a picture. It's a classroom. It's a big room. In the picture, you can see a table, five desks and six chairs. You can see a girl and two boys, too. Three books are on the table. ...
【单选题】某猪场怀孕母猪,产下部分死胎,部分仔猪在10日龄出现震颤、四肢呈划水状。将病猪脑组织匀浆液接种家兔,出现奇痒症状,该病例最可能的致病病原是
A.
猪细小病毒
B.
猪瘟病毒
C.
伪狂犬病病毒
D.
日本乙型脑炎病毒
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