单选题：The reason why there still needs improvement in the past vie

题目分类：专四
题目类型：单选题
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The reason why there still needs improvement in the past view of Archaeopteryx is that A．fossils of those earliest birds haven't been discovered ye
B．the wishbone they studied is just so-called wishbone:
C．there was no study of the role of its brain and some faculties in fligh
D．Archaeopteryx is regarded as the earliest known bir

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The party's reduced vote was __________ of lack of support f

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分类：专四题型：单选题

Look!There is a _________ of fish!

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分类：专四题型：单选题

Van Gogh attached much importance to __________ in terms of

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分类：专四题型：单选题

Have you ever been in a situation_________ you know the othe

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分类：专四题型：单选题

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分类：专四题型：单选题