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【判断题】
吸烟是导致肺癌的首要危险因素,但吸烟对人体生殖系统则是无害的。A.
正确
B.
错误
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举一反三
【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.
猪瘟病毒
B.
猪细小病毒
C.
伪狂犬病病毒
D.
日本乙型脑炎病毒
E.
猪繁殖与呼吸综合征病毒
【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】Word的主要功能有哪些?
【简答题】阅读理解。 This is a picture. In the picture you can see some hills (小山),trees and a school.You can see some boys and girls.They are at school.The school is Hongxing Middle School.Lingling is twelve. Fangf...
【简答题】阅读理解。 This is a picture .In the picture you can see some hills (小山), trees and a school. You can see some boys and girls. They are at school. The school is HongXing Middle School. Lingling is twelve...
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