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Which statement is TRUE with respect to the elasticity of nylon mooring lines?（）.
A . Nylon can stretch over forty percent without being in danger of parting
B . Nylon can be elongated by one-hundred percent before it will part
C . Nylon will part if it is stretched any more than twenty percent
D . Under load，nylon will stretch and thin out but will return to normal size when free of tensio
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需求的交叉弹性（Cross elasticity of demand）
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需求的弧弹性（Arc elasticity of demand）
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需求的价格弹性（Price elasticity of demand）
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Price elasticity of supply 供给的价格弹性
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需求的收入弹性（income elasticity of demand）
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Cross curves of stability show which of the following?（）.
A . The righting arms at various angles of inclination and displacement
B . The metacentric height at large angle of heel
C . The height of the center of buoyancy at various angles
D . The metacentric radius at various angle
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Cross curves of stability show which of the following（）.
A . The righting arms at various angles of inclination and displacement
B . The metacentric height at large angles of heel
C . The height of the center of buoyancy at various angles
D . The metacentric radius at various displacement
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Which of the following demand functions represents a price elasticity of demand equal to -0.33 and an income elasticity of demand equal to 0.8 at all points along the curve?
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In B2B markets, the demand for coffee beans is related to the demand for coffee machines. This example reflects elastic demand.
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Its emblem of World Red Cross was ________.
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Treaty of World Red Cross marked the recognition and protection of the world.
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Which of the following expressions are demanding favorable terms of payment?
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There are three types of large arteries, elastic arteries and small arteries.
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As a person ages, more cross-links are formed, and this probably contributes to the stiffening and loss of elasticity that occurs in aging tissue.
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The price elasticity of demand measures which of the following？
A．the slope of the demand curve
B．the rate at which demand changes when price changes
C．how responsive the quantity demanded is to changes in price
D．the percentage-slope of the demand curv
E．None of these correctly defines what price elasticity of demand measures．
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We can easily see from the definition of k _______ the ratio of a force _______ a length that the unit of elastic potential energy （）
A．by……with
B．by……to
C．as……with
D．as……to
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______, Mr. Cross wouldn’t have been suspected of embezzlement.
A．If he hadn’t been on sick leave
B．If he hadn’t continued making excessive orders
C．If he hadn't been Mr. Lawton's brother-in-law
D．If he hadn't been spotted by Mr. Lawton
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Which statement of elastic modulus is NOT correct？
A) Elastic modulus is also known as Young&39;s modulus
B) The higher the magnitude ofelastic modulus the weaker the interatomic bonding forces
C) Elastic modulus is the constant ofproportionality in Hooke&39;s law
D) Elastic modulus can be measured graphically in the elastic region ofthe stress-strain diagram
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需求收入弹性（income elasticity of demand) （名词解释)
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什么是需求的弧弹性（Arc elasticity of demand)？
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What does the author mean by "family is of course an elastic word"？
A．Different families have different ways of life.
B．Different definitions could be given to the word.
C．Different nations have different families.
D．Different times produce different families.
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If a 1 percent change in price causes a 1 percent change in quantity demanded, then demand is unit elastic.（)
是
否
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Wewellwith the demand of Asian market（）
A．shall, acquaint
B．can, acquaint
C．are, acquainting
D．are, acquainted
