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【单选题】
In economic analysis, any amount of profit earned above zero is considered "above normal" because:A.
normally firms are supposed to earn zero profit.
B.
this would indicate that the firm's revenue exceeded both its accounting and opportunity cost.
C.
this would indicate that the firm was at least earning a profit equal to its opportunity cost.
D.
this would indicate that the firm's revenue exceeded its accounting cost.
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【单选题】旅行社向某饭店发出订房传真,欲以100元/天·间预定6月21日至24日的20间客房。而饭店回传真，可以以120元/天·间提供6月21日至24日的20间客房。旅行社的传真和饭店的传真分别属于()。
A.
要约邀请、要约
B.
要约、承诺
C.
要约邀请、新要约
D.
要约、新要约
【单选题】Which of the following is not implied in the passage?
A.
The blues world is now dominated by white folks．
B.
Most modern blues records are sold almost only to black folks．
C.
Most modern blues records are sold almost only to white folks．
D.
The black audience for blues music has decreased
【单选题】Which of the following is TRUE?
A.
Jazz is now popular all over the world.
B.
Jazz is now a kind of religious music.
C.
Jazz is now played only in bars and clubs.
D.
Jazz is now played a little differently sometimes.
【简答题】There is sometimes lamented even in England itself, for though the language that now sweeps the world is called English, the culture carried with it is American.
【简答题】果农李明承包有100亩苹果园，2000年秋季获得了大丰收，但李明不懂得销售的途径和方法，在农村的集市销售量又很小，便于2000年8月20日委托其在市里的远房亲戚李刚在市内代为销售，并处理相关事宜。双方约定，苹果最低每斤0.8元，李刚按销售总额的5%提成，于每次李刚交还款时结算，李刚根据市里苹果需求量大小及时通知李明，以便李明准确向李刚送货。 8月24日，李刚就开始积极活动，先后以自己的名义与A市场...
【单选题】旅行社向某饭店发出订房传真 ,欲以100元/天·间预定6月21日至24日的20间客房。而饭店回传真,可以以120元/天·间提供6月21日至24日的20间客房。旅行社的传真和饭店的传真分别属于
A.
要约、新要约
B.
要约邀请、要约
C.
要约、承诺
D.
要约邀请、新要约
【简答题】旅行社向某饭店发出订房传真，欲以100元/(天·间)的价格预定6月21日到24日的20间客房。而饭店回传真，可以以120元/(天·间)的价格定6月21日到24日的20间客房。 问：旅行社的传真和饭店回的传真都属于要约吗?
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