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在相同的观测条件下测得同一水平角角值为:173°58′58"、173°59′02"、173°59′04"、173°59′06"、173°59′10",则观测值的中误差为（）。
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[音频]Listen and complete a conversation between an architect and her client.Architect: Keystone Architecture. This is Donna.Client: Hi, Donna, it’s Jim North. I’m calling about the 1 ______________ that you sent me.Architect: Is there a problem?Client: Well, I’m wondering, why do we need the 2 ______________ on the ceilings?Architect: Oh, vaulted ceilings create more 3 ______________ .Client: So they make rooms look 4 ______________ ?Architect: Yes, exactly. The only downside is that they can 5 ______________ energy costs.Client: In that case, I’d rather go with flat ceilings so we’re not 6 ______________ energy.
古人说:“有钱能使鬼推磨。”当今社会有些人为了钱,违背道德,触犯法律;有些人却生活节俭,广做慈善。你认为金钱该如何获得?( )
影响消费的首要因素是（ ）
下列物品中,属于商品的是( )
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