问题
多项选择题
竞争者的存在给予了一定的战略意义，以下说法中正确的有（）。
A.它们减少了违反反托拉斯法的风险
B.它们可以增加总需求
C.它们导致更多差别
D.它们为效率较低的生产者提供了一把成本保护伞
E.它们分享市场开发成本和给一项新技术以合法地位
答案
参考答案：A, B, C, D, E
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竞争者的存在给予了一定的战略意义，以下说法中正确的有（）。
A.它们减少了违反反托拉斯法的风险
B.它们可以增加总需求
C.它们导致更多差别
D.它们为效率较低的生产者提供了一把成本保护伞
E.它们分享市场开发成本和给一项新技术以合法地位
参考答案：A, B, C, D, E
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| I was fifteen months old,a happy kid until the day I fell.It was a__1__fall.I landed on a glass rabbit which cut my eye badly enough to make it blind.Trying to save the eye,the doctors stitched (缝合) the eyeball together where it was__2__,leaving a big ugly scar (疤痕) in the middle of my eye.The attempt__3__,but my mother,in all of her wisdom  ,found another doctor who knew that if the eye were removed__4__,my face would grow up badly distorted (扭曲),__5__my scarred,sightless,cloudy and gray eye lived on with me.As I grew,this sightless eye in so many ways__6__me. I walked with my face looking at the__7__so that people would not see the__8__me. Yet my mother would say to me,at every turn,"Hold your head up high and__9__the world. If you hold your head up high,it will be OK,and people will see your__10__soul." She continued this__11__whenever I was trying to hide. Mama's words were of great help for me to face the world__12__.As a teenager,even though I tended to look down to hide my shame,I found that sometime when I held my head up high and let people know me,they__13__me.In high school,I was__14__both academicallyand socially.I was__15__elected class president.My mother's words helped me begin to realize that by letting people look at my face,I let them__16__the intelligence and beauty behind both eyes,even if they couldn't see it on the__17__. Now I'm a happy wife and great mother.The message "Hold your head up high" has been__18__many times in my__19__home.Each of my children has felt__20__invitation, and the gift my mother gave me has lived on in another generation. | |||
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