[单项选择]For a national of pet-rovers, the British are surprisingly relaxed about the vast numbers of animal experiments that are conducted by its scientists. A dearth of publicity following the jailing of extremists who threatened the livelihoods (and, in other cases, the lives) of those who help provide animals for research may be one reason for the muted response to the recent Home Office announcement that the number of animals used in experiments rose once again last year. But another reason is that Britain already has the most restrictive rules in the world governing the use of animals, which curtail the use of many of the higher-order species for which people feel the greatest empathy, and that most of the research that is done instead involves rodents.
Unlike America, where researchers routinely use chimpanzees to help develop vaccines against diseases such as hepatitis-C and HIV, no experiments of any kind have been conducted on great apes in Britain for more than a decade. Only re
A. Opposition.
B. Indifference.
C. Indignation.
D. Approval.

最新试题

• ●    [多选题]TE7 麻醉解决方案有哪些：(　　)
• ●    [多选题]田间出现除草剂药害时要注意( )
• ●    '中焦如沤'指的是（）
• ●    [单选题]分接开关在(____)倍最大额定电流从第一位置连续变换半周，其过渡电阻温升的最大值不超过3
• ●    Colles骨折时，以下哪种情况最少见（　　）
• ●    [单选题]膜性口炎是由