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某工厂进行改扩建工程投资，有甲、乙两个投资方案，其投资额、年经营成本及综合总费用见下表，则甲、乙两方案的年折算费用分别为( )。 方案 总投资I(万元) 年经营成本C(万元) 寿命期(年) 综合总费用S(万元) 甲 1000 100 10 1500 乙 800 150 8 1550
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若有以下程序： #include 〈iostream〉 using namespace std; class A private: int x; public: int z; void setx(int i) x=i; int getx () return x; ; class B : public A private: int m; public: int p; void setvalue(int a,int b, int C) setx (
有以下程序： #include 〈iostream〉 using namespace std; class A public: virtual void setx(int i,int j=0) x=i; y=j; virtual void print()=0; protected: int x,y; ; class B : public A public: void print() cout〈〈x*x〈〈", "; ; class C : public A public: void print() cout〈〈x*x*x〈〈end1; ; int main() A *pa; B b; C c; pa=&b; pa->setx(5); pa->print (); pa=&c; pa->setx(2); pa->print(); return 0; 程序运行后的输出结果是( )。
Cooperative cooperation. Competitive cooperation. Confused Airline alliances have travelers scratching their heads over what’’s going on in the skies. Some folks view alliances as a blessing to travelers, offering seamless travel, reduced fares and enhanced frequent-flyer benefits. Others see a conspiracy of big business, causing decreased competition, increased fares and fewer choices. Whatever your opinion, there’’s no escaping airline alliances: the marketing hype is unrelenting, with each of the two mega-groupings, Oneworld and Star Alliance, promoting itself as the best choice for all travelers. And, even if you turn away from their ads, chances are they will figure in any of your travel plans. By the end of the year, Oneworld and Star Alliance will between them control more than 40% of the traffic in the sky. Some pundits predict that figure will be more like 75% in 10 years. But why, after years of often ferocious competition, have airlines decided to band together Let’’s just say the timing is mutually convenient. North American airlines, have exhausted all means of earning customer loyalty at home, have been looking for ways to reach out to foreign flyers. Asian carriers are still hurting from the region-wide economic downturn that began two years ago-just when some of the airlines were taking delivery of new aircraft. Alliances also allow carriers to cut costs and increase profits by pooling manpower resources on the ground and code-sharing—the practice of two partners selling tickets and operating only one aircraft. So alliances are terrific for airlines—but are they good for the passenger Absolutely, say the airlines: think of the lounges, the joint FFP (frequent flyer program) benefits, the round-the-world fares, and the global service networks. Then there’’s the promise of "seamless" travel: the ability to, say, travel from Singapore to Rome to New York, all on one ticket, without having to wait hours for connections or worry about your bags. Sounds Utopian Peter Buecking, Cathay Pacific’’s director of sales and marketing, thinks that seamless travel is still evolving. "It’’s fair to say that these links are only in their infancy. The key to seamlessness rests in infrastructure and information sharing. We’’re working on this." Henry Ma, spokesperson for Star Alliance in Hong Kong, lists some of the other benefits for consumers. "Global travelers have an easier time making connections and planning their itineraries." Ma claims alliances also assure passengers consistent service standards. Critics of alliances say the much-touted benefits to the consumer are mostly pie in the sky, that alliances are all about reducing costs for the airlines, rationalizing services and running joint marketing programs. It is believed that alliances will ultimately result in decreased flight choices and increased costs for consumers. Instead of two airlines competing and each operating a flight on the same route at 70% capacity, the allied pair will share the route and run one full flight. Since fewer seats will be available, passengers will be obliged to pay more for tickets. Those who’’ve already made the elite grade in the FFP of a major airline stand to benefit the most when it joins an alliance: then they enjoy the FFP perks and advantages on any and all of the member carriers. For those who haven’’t made the top grade in any FFP, alliances might be a way of simplifying the earning of frequent flyer miles. For example, I belong to United Airline’’s Mileage Plus and generally fly less than 25, 000 miles a year. But I earn miles with every flight I take on Star Alliance member—All Nippon Airways and Thai Airways. If you fly less than I do, you might be smarter to stay out of the FFP game altogether. Hunt for bargains when booking flights and you might be able to save enough to take that extra trip anyway. The only real benefit infrequent flyers can draw from an alliance is an inexpensive round-the-world fare. The bottom line: for all the marketing hype, alliances aren’’t all things to all people—but everybody can get some benefit out of them. According to paragraph two, setting up airline alliances will chiefly benefit
张某欲购买一套住房，委托甲房地产经纪机构(以下简称甲机构)寻找房源并签订了经纪合同。甲机构寻找到的合适房源为李某的住房。该住房位于某幢住宅楼的二层，北侧为主城区高架桥，南侧为农贸市场。该房屋结构建筑主要由砖、石和钢筋混凝土等作为承重材料。张某在甲机构对该住房权属证书进行查验，并对其进行现场勘验。随后张某与李某签订了房屋买卖合同，且按合同约定向李某支付预付款20万元；合同约定余款于取得房屋权属证书后立即支付。后张某以房屋周围环境噪声大为由拒绝收房，并认为李某在签订房屋买卖合同时有欺诈行为，要求解除合同，并要求李某双倍返还预付款。 张某与甲机构签订的经纪合同为( )。
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