A、While holding a burial ceremony for a pet mouse, they were killing pest mice. B、While advocating freedom for animals, they kep

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问题  
The University of Tennessee’s Walters Life Sciences Building is a model animal facility, spotlessly clean, careful in obtaining prior approval for experiments from an animal-care committee. Of the 15,000 mice housed there in a typical year, most give their lives for humanity. These are "good" mice and as such won the protection of the animal-care committee. At any given time, however, some mice escape and run free. These mice are "pests". They can disrupt experiments with the bacteria organisms they carry. They are "bad" mice and must be captured and destroyed. Usually, this is accomplished by means of sticky traps, a kind of fly paper on which they become increasingly stuck. But the real point of this cautionary tale, says animal behaviorist Herzog, is that the labels we put on things can affect our moral responses to them. Using stick traps or the more deadly snap traps would be deemed unacceptable for good mice. Yet the killing of bad mice requires no prior approval. Once a research animal hits the floor and becomes an escapee, says Herzog, its moral standing is instantly diminished. In Herzog’s own home, there was a more ironic example: when his young son’s pet mouse Willy died recently, it was accorded a tearful ceremonial burial in the garden. Yet even as they mourned Willy, says Herzog, he and his wife were setting snap traps to kill the pest mice in their kitchen. With the bare change in labels from "pet" to "pest", the kitchen mice obtained totally different moral status.
    9.What does the passage say about most of the mice used for experiments?
    10.Why did the so-called bad mice have to be captured and destroyed?
    11.When are mice killed without prior approval?
    12.Why does the speaker say what the Herzogs did at home is ironical?

选项 A、While holding a burial ceremony for a pet mouse, they were killing pest mice.
B、While advocating freedom for animals, they kept their pet mouse in a cage.
C、While calling for animal rights, they allowed their kids to keep pet animals.
D、While launching animal protection campaigns, they were trapping kitchen mice.

答案A

解析 文中提到在赫佐格家,有更具讽刺意义的一幕:当他儿子的宠物鼠不久前死去时,他们为它在花园举行了一场葬礼。但甚至在他们哀悼宠物鼠时,赫佐格和妻子也在厨房里放了鼠夹以消灭害鼠。A项意思与此一致,故答案为A。
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