[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. Americans prefer monkeys to chimpanzees
B. Mark Walport is Patrick’s personal enemy
C. It’s still necessary to do animal experiments now
D. Britain is no longer an animal-loving nation

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