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二二走四的滑车组，其中表示钢丝绳的有效分支数为()根
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We have learned that certain positive characteristics are helpful in language learning. Some people think that outgoing students are more successful language learners than introverted students. Do you agree？ Are there any other characteristics that you think are helpful to language learning and why？
幼儿园课程是指影响幼儿的所有与幼儿园有关的活动，具体表现为帮助幼儿获得有益的学习经验，促进其身心全面和谐发展的各种教育活动的总称。()
根据我国《合同法》的规定，下列属于《合同法》分则中规定的合同有()。
有限责任公司利润的分配依据是（）。
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