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【单选题】
某厂商完全垄断了两个市场,并可以在两个市场差别定价。市场1的需求函数为【图片】,市场2的需求函数为【图片】。若该厂商有不变的边际成本c (c > 0) ,那么该厂商实现利润最大化时在两个市场的定价之比(【图片】)等于:
A.
2/3
B.
1/3
C.
3/2
D.
3
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【单选题】工程与人、自然、社会共生共存、共荣共进的现实要求现代工程职业美德观更注重工程师在职业活动中主动践行尊重工程-人-自然-社会整体存在下的()合一的卓越理念。
A.
知识与理性
B.
工程与道德
C.
认知与行动
D.
责任与良心
【单选题】I felt it an honor ____ to speak here.
A.
to ask
B.
asking
C.
to be asked
D.
having asked
【简答题】听力原文: President Rudenstine, fellow graduates, friends of Harvard. It is a great honor and pleasure to be invited today to share this happy occasion, not only with the members of the graduating class o...
【单选题】I felt it an honor _______    to speak here.
A.
to ask
B.
to be asked
C.
asking
D.
having asked
【简答题】I. 单句填空 ( 1 ) Tired and short of breath , Andy was the first person ( reach ) the top of Mount Tai. ( 2 ) I felt it an honor ( invite ) to your birthday party. ( 3 ) ( be ) kind to the enemy is ( be )...
【单选题】工程与人、自然、社会共生共存、共荣共进的现实注重工程师在职业活动中主动践行尊重工程-人-自然-社会整体存在下的工程与道德合一的卓越理念。这一理念的特征具体展开为()结合。
A.
遵循伦理章程与服从上级命令
B.
“应当如何做”和“应当做什么”
C.
行业规范与职业精神
D.
伦理章程与职业美德
【判断题】自耦变压器的效益系数定义为标准容量与额定容量之比。( )
A.
正确
B.
错误
【单选题】自耦变压器的效益系数定义为( )
A.
额定容量与标准容量之比
B.
标准容量与额定容量之比
C.
一次额定电压与二次额定电压之比
D.
一次额定电流与二次额定电流之比
【单选题】I felt it an honor ______ to speak here.
A.
asking
B.
having asked
C.
to ask
D.
to be asked
【简答题】The young wonman entered the pool where an injured dolphin(海豚) was swimming. Despite her fear,she felt strong wearing her new leg. In her second grade. Maja 1 her cousin.Jasmina.After Jasmina’s death....
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