试题与答案

读图回答: (1)图一人物是谁?他是哪国人? (2)图二是图一人物的什么发明

题型:

题目:

读图回答:

(1)图一人物是谁?他是哪国人?

                                                                                                                                                       

(2)图二是图一人物的什么发明?此项发明有何重大作用?

                                                                                                                                                       

                                                                                                                                                       

                                                                                                                                                       

答案:

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参考答案:地面粗糙度引起的湍流强度的

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