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【单选题】
The Universal Declaration on Animal Welfare is a proposed inter-governmental agreement to recognize that animals are sentient, to prevent cruelty and reduce suffering, and to promote standards on the welfare of animals such as farm animals, companion animals, animals in scientific research, draught animals, wildlife and animals in recreation. Its declarations for animal welfare include:
A.
Recognition that animals are living, sentient beings and therefore deserve due consideration and respect; recognition that animal welfare includes animal health and encompasses both the physical and psychological state of the animal and that good practices in animal welfare can have major benefits for humans and the environment
B.
Recognition that humans inhabit this planet with other species and other forms of life and that all forms of life co-exist within an interdependent ecosystem; recognition of the importance of the ongoing work of the World Organization for Animal Health (OIE) in setting global standards for animal welfare and that Member States should adopt all necessary measures to give effect to the principles of UDAW, including the implementation of these standards
C.
Acknowledgment that many states already have a system of legal protection for animals, both domestic and wild and that the continued effectiveness of these systems must be ensured, with the development of better and more comprehensive animal welfare provisions.
D.
Awareness that the Five Freedoms (freedom from hunger, thirst and malnutrition; freedom from fear and distress; freedom from physical and thermal discomfort; freedom from pain, injury and disease; and freedom to express normal patterns of behavior) and the Three Rs (reduction in numbers of animals, refinement of experimental methods, & replacement of animals with non-animal techniques) provide valuable guidance for the use of animals; recognition that the provisions contained in this declaration do not affect the rights of any state
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【单选题】干燥实验的预热阶段,在其它条件下不变的情况下,关闭中间的蝶阀对实验有何影响:
A.
干燥介质湿度增加
B.
湿球温度升高
C.
升温速度变慢
D.
湿球温度降低
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【单选题】设i是虚数单位,如果复数 的实部与虚部相等,那么实数 的值为( )
A.
4
B.
3
C.
2
D.
1
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A.
使用“文件”菜单中的“打印”命令
B.
单击“常用”工具栏上的“打印”按钮
C.
按键盘上的Prtsc(PrintScreen)键
D.
按组合键Alt+Prtsc(PrintScreen)
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A.
2,3
B.
2,-3
C.
2,3i
D.
2,-3i
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