When Midori was two years old, she was not allowed to touch her mother's violin because____________.
A. she was too young to play the violin
B. the violin was too expensive
C. the violin was too big for her
D. her mother wanted her to play the piano
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在下列溶液中，BaSO4的溶解度最大者是( )。
A. ( 0.1mol/1H2SO4
B. ( 0.2mol/1Na2SO4
C. ( 0.3mol/1BaCl2
D. ( 纯水
E00FIMKA LINKCZ()M POTINFGLK
A. 1
B. 2
C. 3
D. 4
已知斜面的倾角为θ，若要保持A静止，则物块与斜面间的摩擦系数/应满足的条件为( )。
A. ( tanθ≤f
B. ( tanθ≥f
C. ( cotθ≤f
D. ( 无限制条件
有两个项目：项目1和项目2，使NPV1=NPV2的收益率为广，设基准收益率为i0，若净现值法和内部收益率法的结论一致，则应满足( )。
A. ( i*＞i0
B. ( 与i*和i0之间的关系无关
C. ( i*＝i0
D. ( i*＜i0
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