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【多选题】
转移成本是对( )的衡量A.
路径依赖
B.
市场竞争
C.
锁定程度
D.
机会成本
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反馈参考答案：
举一反三
【单选题】一张气泡室照片表明,质子的运动轨迹是一半径为10cm的圆弧,运动轨迹平面与磁感强度大小为0.3Wb·m2的磁场垂直. 该质子动能的数量级为
A.
0. 0 1MeV
B.
1MeV
C.
0.1MeV
D.
10Mev
【简答题】tread milling
【单选题】Nathaniel Hawthorne held an unceasing interest in the “interior of the heart” of man's being. So in almost every book he wrote, Hawthorne discussed ______
A.
love and hatred
B.
sin and evil
C.
frustration and self-denial
D.
balance and self-discipline
【简答题】This book covers almost every aspect of the field concerned and also reviews the best practice in this field.
【单选题】It's never easy for a mighty military to tread lightly on foreign soil. In the case of American forces in South Korea, protectors of the nation's sovereignty since the Korean War, the job is made doub...
A.
the massacre of 200 pro-democracy protesters
B.
many tragic outcomes of U.S. Korean cross-country marriage
C.
sexual assaults on Korean prostitutes
D.
American servicemen's behaviour in South Korea
【简答题】Almost every book written by Hawthorne discusses _____ , which reflects his unceasing interest in the “interior of the heart” of man’s being.
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