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【简答题】
记等差数列 的前 为 ，若 ，则直线 的斜率为= ．
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皮皮学刷刷变学霸
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【简答题】设f(x)和g(x)在(-∞，+∞)内有定义．f(x)为连续函数，且f(x)≠0，g(x)有间断点，则( )。 (A) g[f(x)]必有间断点 (B) g(x)/f(x)必有间断点 (C) [g(x)] 2 必有间断点 (D) f[g(x)]必有间断点
【单选题】被保险人或者受益人,在未发生保险事故的情况下,谎称发生了保险事故,向保险人提出赔偿或者给付保险金的请求的,保险人有权解除保险合同,并不退还保险费。保险人行使的这一合同解除权属于( )。
A.
法定解除
B.
约定解除
C.
任意解除
D.
协商解除
【单选题】What are the factors of microenvironment affecting the marketing?
A.
supplies, company, competitors, marketing intermediaries, customers, publics
B.
supplies, company, competitors, marketing intermediaries, customers
C.
supplies, company, competitors, customers, publics
D.
supplies, company, competitors, marketing intermediaries, publics
【简答题】设f(x)和φ(x)在(-∞，+∞)内有定义，f(x)为连续函数，且f(x)≠0，φ(x)有间断点，则______． (A)φ[f(x)]必有间断点 (B)[φ(x)] 2 必有间断点 (C)f[φ(x)]必有间断点 (D) 必有间断点
【简答题】On the other hand, what does marketing focus on?
【单选题】What is the synonym of the 4Ps of marketing?
A.
marketing tool
B.
marketing definition
C.
marketing mix
D.
marketing methods
【单选题】What are multichannel marketing systems?
A.
channels that have multiple intermediaries between the producer and the consumer
B.
separate marketing channels that serve customers
C.
channels that do business in multiple countries
D.
channels that combine horizontal and vertical marketing systems
【单选题】设【图片】和【图片】在【图片】内有定义，【图片】为连续函数，且【图片】，【图片】有间断点，则（ ）.
A.
必有间断点
B.
必有间断点
C.
必有间断点
D.
必有间断点
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