【单选题】轴肩和轴环能对轴上零件起准确轴向定位作用。 ( )
【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( )。
【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.
【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.
【单选题】下列哪项措施不能提高船舶舵效:1提高船速;2提高船速的同时降低螺旋桨转速;3降低船速的同时降低螺旋桨转速;4降低船速的同时提高螺旋桨转速。
【单选题】下列有关细胞膜的叙述,正确的是
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 ...