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【单选题】
Which of the following distinguishes a "straight-line" production possibilities curve from one that is "bowed out"?A.
A straight-line production possibilities curve exhibits increasing opportunity costs, whereas a bowed production possibilities curve does not.
B.
A straight-line production possibilities curve exhibits decreasing opportunity costs, whereas a bowed production possibilities curve does not.
C.
A straight-line production possibilities curve exhibits constant opportunity costs, whereas a bowed production possibilities curve does not.
D.
A straight-line production possibilities curve is upward sloping, whereas a bowed production possibilities curve is not.
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反馈参考答案：
举一反三
【单选题】我国企业的资产负债表中。资产类项目的排序顺序是（ ）。
A.
按照资产的变现能力顺序由慢到快排列
B.
按照资产的金额大小顺序由大到小排列
C.
按照各项资产占总资产的比重由大到小排列
D.
按照资产的变现能力顺序由快到慢排列
【多选题】关于柱式墩台施工要求，正确的有（）。
A.
墩台柱与承台基础接触面应凿毛处理，清除钢筋污锈
B.
浇筑墩台柱混凝土时，应铺同配合比的水泥砂浆一层
C.
柱身高度内有系梁连接时，系梁应与柱同步浇筑
D.
V形墩柱混凝土应对称浇筑
E.
分层浇筑时，接缝应按施工缝处理
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