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  3. Life on earth【56】many shapes and surely of the strangest is a newly discovered【57】whose ability to change the bodily (身体的)【58】is

Life on earth【56】many shapes and surely of the strangest is a newly discovered【57】whose ability to change the bodily (身体的)【58】is

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问题     Life on earth【56】many shapes and surely of the strangest is a newly discovered【57】whose ability to change the bodily (身体的)【58】is so dramatic that some biologists【59】disbelief when they first heard about it.
    Sometimes, the【60】creatures seems to behave like a green plant, calmly photosynthesizing (进行光合作用)【61】the sun. These organisms can transform themselves into【62】monsters,【63】within minutes into a block-like form at least 100 times【64】
    In its free-swimming【65】, the organism feeds on fish flesh, but if the supply【66】, the creature simply goes into suspended (暂停的，中止的) condition【67】a protective shell around itself and dropping to the bottom【68】it can wait【69】years. When more fish happen【70】, the creature senses their presence, breaks out of its shell and swims free again.
    The species would be【71】more than a scientific curiosity, a marvel of nature,【72】for one fact. When the organism detects fish and【73】out, it produces a powerful【74】that kills the fish, often【75】minutes, sometimes by the millions.
选项 A、if it is not
B、were it not
C、had it been
D、if it would be
答案B
解析 语法结构题。本句为虚拟语气中现在虚拟的句子的倒装结构，正常的语序应为if it were not for one fact，…。
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