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1·Each DAT file blocks a certain group of MAXIS buildings, for flexibility.

每个DAT文件屏蔽对应的一组建筑物，可以根据需要灵活应用。

2·It's a fine product whose expense ratio, at about 50 cents for every hundred dollars in assets under management, is in line with the Maxis fund.

这是个不错的产品，它的费用率与Maxis基金大致相当，每百美元管理资产的费用约为50美分。