皮皮学，免费搜题
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搜题
【单选题】
进行工程项目经济评价，应遵循（）权衡的基本原则。A.
费用与收益
B.
收益与风险
C.
静态与动态
D.
效率与公平
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Speech act theory did not come into being until _________.
A.
in the late 50’s of the 20th century
B.
in the early 1950’s
C.
in the late 1960’s
D.
in the early 21st century.
【简答题】建筑高度超过( )m,无论是居住建筑还是公共建筑,均称为超高层建筑。
【简答题】关系表达式的值非真即假。当关系表达式成立时,关系表达式的值为 (真);当关系表达式不成立时,其值为 (假)
【单选题】Speech act theory did not come into being until ________.
A.
in the late 1950’s
B.
in the early 1950’s
C.
in the late 1960’s
D.
in the early 21st century
【单选题】Speech act theory did not come into being until
A.
the late 50's of the 20th century.
B.
the early 1950's of the 20th century.
C.
the late 1960's of the 20th century.
D.
the early 21st century.
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