Label the diagram below. Choose NO MORE THAN ONE WORD from the passage for each answer. Write your answers in boxes 7-9 on your

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问题 Label the diagram below.
Choose NO MORE THAN ONE WORD from the passage for each answer.
Write your answers in boxes 7-9 on your answer sheet.
A model of an acrocanthosaurus
Dinosaur’s name comes from spines.
One theory: they were necessary
to hold up a【R7】______which
helped control body heat.
Skull is【R8】______
compared with rest of body.

【R9】______made
easier by wide tail
and highly developed
muscles in legs.
【R7】

选项

答案sail

解析 ’There are also those who believe that the spines acted as a support for a sail. Of these,... and the other half think it was used as a temperature-regulating device[= control body heat].’ Distraction ’hump’ is wrong because it is thought it ’stored fat and water’, not that it controlled temperature.
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