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(题干)妊娠母猪,精神沉郁,食欲未见异常,体温38.5°C,生长缓慢,皮肤粗糙,呈脂溢性皮炎,口唇发炎,继而共济失调,轻瘫,鬃脱落,流产、早产,所产仔猪孱弱、秃,皮炎,结膜炎。该病可诊断为( )A.维生素K缺乏症 B.维生素B1缺乏症 C.维生素B2缺乏症 D.维生素B6缺乏症 E.维生素D缺乏症 治疗该病首选的药物是( )A.烟酸 B.硫胺素 C.核黄素 D.生物素 E.钴胺素
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【多选题】Types of DNA repair systems in E. coli include:
A.
mismatch repair (MMR)
B.
base-excision repair (BER)
C.
nucleotide-excision repair (NER)
D.
direct repair
【单选题】— Excuse me, could you tell me ? — There is an e–shop on the third floor. You can repair it there.
A.
where can I repair my MP4 player
B.
where I can repair my MP4 player
C.
how can I go to the e–shop
D.
how I can go to the e–shop
【判断题】推进全面依法治国,必须从立法、执法、司法、守法四个方面统筹推进
A.
正确
B.
错误
【判断题】推进全面依法治国,必须从立法、执法、守法三个方面统筹推进。
A.
正确
B.
错误
【判断题】阿拉伯人对世界科学技术发展的独特贡献在于:在时间上沟通了欧洲的古代与近代;在空间上沟通了东方与西方。
A.
正确
B.
错误
【多选题】推进全面依法治国,必须从立法、执法、司法、守法四个方面统筹推进。展现了全面依法治国的基本格局是什么?
A.
科学立法
B.
严格执法
C.
公正司法
D.
全民守法
【判断题】土地荒漠化是世界主要环境问题之一。
A.
正确
B.
错误
【多选题】推进全面依法治国,必须从立法、执法、司法、守法四个方面统筹推进。全面依法治国的基本格局展现为()
A.
科学立法
B.
严格执法
C.
公正司法
D.
全民守法
【单选题】After repair, the voyage trial of the M-E should be done ()
A.
after the mooring trial has passed
B.
before the mooring trial
C.
under the surveyors supervision
D.
after repair
【单选题】Why can DNA repair and replicate with high fid e lity?
A.
Genetic information is encoded in the linear sequence of fo ur kinds o f subunits of DN
B.
The continuity of inherited traits has been preserved in the structure of DNA for million of years.
C.
The structure of DNA is rigid enough to resist any damage and error during repair an d replication.
D.
DNA double helix contains two complementary s t rands, one serves as a t emplat e fo r the synthesis of the other.
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