2. 考研
  3. A. marine B. have discovered C. slows Phrases: A. This turbulence muses friction and【T1】________the fish down B

A. marine B. have discovered C. slows Phrases: A. This turbulence muses friction and【T1】________the fish down B

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问题     A.  marine B.  have discovered C.  slows
    Phrases:
    A.  This turbulence muses friction and【T1】________the fish down
    B.  Another kind of【T2】________animals is dolphin
    C.  Biologists studying the dolphin【T3】 ________that
    【T4】 ________This seagoing mammal has been clocked at speed of 32 kilometers(20miles)an hour.【T5】________, like the shark, the animal’s efficient locomotion can be traced to its skin. A dolphin’s skin is made up in such a way that it offers very little resistance to the water flowing over it. Normally when a fish or other object moves slowly through the water, the water flows smoothly past the body. This smooth flow is known as laminar flow. However, at faster speeds the water becomes more turbulent along the moving fish.【T6】________
【T4】
选项
答案B
解析
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