【填空题】
44.码头按其前沿的横断面外形有___，___，___和___。
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答案
直立式|斜坡式|半直立式|半斜坡式
解析
暂无解析
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The video cameras were used to catch the dogs' responses because ___________.
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When there are no stimuli, a dog will ___________.___
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The purpose of doing the experiment is _________.___
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People in Rome believe that the civilization of a city can be judged by _________.___
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【单选题】
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