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【单选题】
肝硬化门静脉高压症患者出现上消化道出血,除了食管胃底静脉曲张破裂出血以外,另一种常见的病因是( )
A.
高压性胃病
B.
贲门粘膜撕裂性出血
C.
十二指肠溃疡出血
D.
异位静脉曲张破裂出血
E.
胃溃疡出血
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【简答题】Synthetic biology itself can provide new effective biosecurity mechanisms, such as synthetic auxotrophies, ______________________ or ingenious genetic circuits.
【多选题】20世纪60年代中期,美国IBM公司管理专家约瑟夫奥列基博士提出把企业内的各种物料分为( )和( )。
A.
独立需求
B.
相关需求
C.
定量需求
D.
定期需求
【判断题】Synthetic biology is a field in constant and rapid development, so discussions on biosafety and biosecurity should evolve as old data are obtained and potential risks are identified.
A.
正确
B.
错误
【多选题】Biosecurity prevention measures in the field of synthetic biology include:
A.
the establishment of decision-making authorities
B.
the development of norms and regulations to promote security
C.
engaging the public to make them understand the risks of synthetic biology
D.
the development of funding policies to promote security
【判断题】Synthetic biology is a field in constant and rapid development, so discussions on biosafety and biosecurity should evolve as new data are obtained and potential risks are identified.
A.
正确
B.
错误
【单选题】A challenge for biosecurity is the potential of synthetic biology to further complicate the identification of a disease outbreak, so that synthetic causative agents could be ______________________ wit...
A.
unforgettable
B.
unforgivable
C.
undetectable
D.
uneditable
【单选题】下列有关细胞膜的叙述,正确的是
A.
细胞膜两侧的离子浓度差是通过自由扩散实现的
B.
细胞膜与线粒体膜、核膜中所含蛋白质的功能相同
C.
分泌蛋白质分泌到细胞外的过程存在膜脂的流动现象
D.
膜中的磷 脂分子是由胆固醇、脂肪酸和磷酸组成的
【多选题】Which of the following statements about "IASB: Technical Solutions for Biosecurity in Synthetic Biology (2008)" are correct?
A.
The assembly of artificial DNA into functional genes and the production of proteins from such genes is available as a highly standardized commercial service. This international industry currently fills thousands of orders for whole genes and millions of orders for short oligonucleotides each day.
B.
In some instances, these orders comprise DNA sequences derived from pathogenic organisms, and in rare cases from pathogens with an extremely high mortality rate, such as the Ebola virus.
C.
The most frequently cited lists of biological agents with potential to pose a severe threat to public health and safety are published by the US Federal Register, FDA, NIAID, CDC, by the American and European Societies for Microbiology and by the WHO.
D.
There exist of course a number of national regulations that deal with biosecurity. Most countries, including the USA and EU members, have legislation in place for the limitation of the export of dual use goods. This includes synthetic DN
【简答题】【双语播报】 >Biosecurity top legal priority 我国将出台生物安全法 China will speed up its legislative process for a biosecurity law to secure national biosecurity, Wu Qian, a spokesperson at the Ministry of National ...
【单选题】The measures that currently govern biosecurity issues are prior to synthetic biology. Given the risks posed by this discipline, these existing regulations must be revisited, updated and, if necessary,...
A.
shortened
B.
loosened
C.
tightened
D.
extended
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