2. 外语
  3. Every human being has a unique (惟一的) arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and

Every human being has a unique (惟一的) arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and

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问题     Every human being has a unique (惟一的) arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of finger-prints and discovered that no exactly similar pattern is passed on from parents to children, though nobody knows why this is the case.
    The ridge(脊状) structure on a person’s fingers does not change with growth and is not affect- ed by surface injuries. Burns, cuts and other damage to the outer part of the skin will be replaced in time by new one which bears a reproduction of the original pattern. It is only when the inner skin is injured that the arrangement will be destroyed. Some criminals make use of this fact to remove their own finger-prints but this is a dangerous and rare step to take.
    Finger-prints can be made very easily with printer’s ink. They can be recorded easily. With special methods, identification(识别) can be achieved successfully within a short time. Because of the simplicity and economy of this system, finger-prints have often been used as a method of solving criminal case. A suspected man may deny a charge but this may be in vain. His finger-prints can prove who he is even if his appearance has been changed by age or accident.
    When a suspect leaves finger-prints behind at the scene of a crime, they are difficult to detect with the naked eye. Special techniques are used to" develop" them. Some of the marks found are incomplete but identification is possible if a print of a quarter of an inch square can be obtained.
选项 A、is similar to his mother’s
B、is valuable to himself only
C、is like that of others with the same type of blood
D、is different from that of all others
答案D
解析 根据文章第一句话，“每个人的手指都有自己惟一的肌肤纹理”，可知答案是[D]。
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