单项选择题

根据《建筑工程勘察合同（示范文本）》，发包人应在收到定金或预付款申请后（ ）日内，将定金或预付款支付给勘察人。

A.21
B.14
C.28
D.7
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单项选择题
ALG Co is launching a new, innovative product onto the market and is trying to decide on the right launch price for the product. The product’s expected life is three years. Given the high level of costs which have been incurred in developing the product, ALG Co wants to ensure that it sets its price at the right level and has therefore consulted a market research company to help it do this. The research, which relates to similar but not identical products launched by other companies, has revealed that at a price of 2 increase in selling price, demand would be expected to fall by 2,000 units and for every 3 per unit. What is the total variable cost per unit and total fixed overheads? A、800,000 B、800,000 C、600,000 D、600,000
单项选择题
浙江温州苍南县举办了一次中小学生“吃苦磨炼”夏令营，20多名中小学生参加了4天的“吃苦磨炼”锻炼，内容包括“生活自理与户外生存训练”“军事拓展运动”(B)等，同学们度过了一个不一样的夏天，开启了一段难忘的旅程。
A.采摘生活体验
B.渔家生活参观体验
C.山区生活体验
D.打猎生活体验
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