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How much pain do animals feel? This is a question which has caused endless controversy. Opponents of big game shooting, for exam

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问题     How much pain do animals feel? This is a question which has caused endless controversy. Opponents of big game shooting, for example, arouse our pity by describing the agonies of a badly-wounded beast that has crawled into a corner to die. In countries where the fox, the hare and the deer are hunted, animal-lovers paint harrowing pictures of the pursued animal suffering not only the physical distress of the chase but the mental anguish of anticipated death.
    The usual answer to these criticisms is that animals do not suffer in the same way, or to the same extent, as we do. Man was created with a delicate nervous system and has never lost his acute sensitiveness to pain; animals, on the other hand, had less sensitive systems to begin with and in the course of millions of years, have developed a capacity of ignoring injuries and disorders which human beings would find intolerable. For example, a dog will continue to play with a ball even after a serious injury to his foot; he may be unable to run without limping, but he will go on trying long after a human child who would have had to stop because of the pain. We are told, moreover, that even when animals appear to us to be suffering acutely, this is not so; what seems to us to be agonized contortions caused by pain are in fact no more than muscular contractions over which they have no control.
    These arguments are unsatisfactory because something about which we know a great deal is being compared with something we can only conjecture. We know what we feel; we have no means of knowing what animals feel. Some creatures with a less delicate nervous system than ours may be incapable of feeling pain to the same extent as we do: that as far as we are entitled to do, the most humane attitude, surely, is to assume that no animals are entirely exempt from physical pain and that we ought, therefore, wherever possible, to avoid causing suffering even to the least of them.
Supporters of game shooting may argue that animals______.
选项 A、cannot control their muscular contractions
B、have developed a capacity of feeling no pain
C、are not as acutely sensitive as human beings to injuries
D、can endure all kinds of disorders
答案C
解析 第二段第二句后半部分表示，动物们在开始时神经系统不敏感，随后在几百万年的进化中发展了忽略疼痛和错乱的能力，而这种疼痛和错乱状态是人类无法忍受的，故选C。
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