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【单选题】
货币之所以具有价值尺度职能，是因为货币本身（）。A.
是商品，具有使用价值
B.
是金银
C.
是商品，具有价值
D.
是商品流通的手段
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举一反三
【单选题】Which of the following statements is true?
A.
The settling of the frontier did little to affect the lives of the Native American Indians.
B.
Native American Indians were featured as heroes in many popular movies and TV shows.
C.
The culture of Native American Indians was protected as the settlers moved farther to settle one frontier area after another.
D.
In the history more attention was paid to the heroic settling of the West than to the miseries it caused to Native American Indians.
【单选题】What is the speaker’s attitude toward uncertainty and settling down?
A.
It is better to settle down later.
B.
It is better to settle down earlier.
C.
It is necessary to try every means to avoid uncertainty.
D.
It is not necessary for people to avoid uncertainty.
【简答题】一座城市汽车加油站，设有3个15T汽油罐和2个15T柴油灌，均为直埋卧式地下油罐，每个油罐均设有单独的通气管，直径60mm，管口高出相邻地面3.6米。加油站上空有两条高压电线通过，线杆高度8.2米。站房与油罐的距离为2.5米，站区内道路为沥青路面。 问：（1）该加油站等级的划分应如何？ （2）油罐的通气管设置是否正确？为什么？ （3）架空高压电线穿越该加油站是否符合规范要求？ （4）站房与油罐的间...
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