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【单选题】
在两级齿轮传动中,若传动比的分配方案是i1 =i2,则其遵循的原则是()A.
重量最轻
B.
等效转动惯量最小
C.
输出轴转角误差最小
D.
加速度相应最快
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举一反三
【简答题】Sam Walton, the founder of Wal-Mart, was born in Kingfish, Oklahoma on March 29, 1918. He was raised in Missouri where he worked in his father’s store while attending school. This was his first retail...
【单选题】After Sam Walton died in 1992, one of his sons took over Wal-Mart and it was then greatly expanded.
A.
Y
B.
N
C.
NG
【简答题】简述联合运输的优缺点。
【简答题】Where does the man prefer to sit in the restaurant?A. He
prefers to sit at a table by the window. B. He prefers to sit at a table by the
door. C. He
prefers to sit at a table at the corner.
【多选题】联合运输优点为（）。
A.
有利于发挥综合运输的优势，提高经济效益和社会效益
B.
有利于挖掘运输潜力，加速货位周转，提高运输效率
C.
有利于形成以城市为中心，港站为枢纽的综合运输网络
D.
有利于无港站的县、市办理商品运输业务
E.
有利于减少中间环节，消除不合理运输现象
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