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【单选题】
下列关于投资估算生产能力指数法的表述中，正确的是( )。A.
一般情况下，生产能力指数的取值范围为0～1.5
B.
当拟建项目生产规模扩大主要依赖增大设备规模时，生产能力指数取值在0.8～0.9之间
C.
这种方法主要用于投资与规模呈线性关系的类型项目
D.
生产能力指数法的估算精度一般可达到±20%以内
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A.
potential disorganization is present in the American family
B.
social development results iii a decline in the importance of traditional families
C.
the movement of a family is one of the factors in raising its social status
D.
family disorganization is more or less the result of mobility
【单选题】Mobility of individual members and family groups tends to split up family relationships. Occasionally the movement of a family away from a situation which has been the source of conflict results in gr...
A.
potential disorganization is present in the American family
B.
family disorganization is more or less the result of mobility
C.
the movement of a family is one of the factors in raising its social status
D.
social development results in a decline in the importance of traditional families
【简答题】一对齿轮的正确啮合条件为： 与分度圆压力角相等。A. 模数相等
【简答题】一对齿轮的正确啮合条件为：（）与（）。
【单选题】Mobility of individual members and family groups tends to split up family relationships. Occasionally the movement of a family away from a situation which has been the source of conflict results in gr...
A.
potential disorganization is present in the American family
B.
family disorganization is more or less the result of mobility
C.
the movement of a family is one of the factors in raising its social status
D.
social development results in a decline in the importance of traditional families
【简答题】一对直齿圆柱齿轮的正确啮合条件为：（）与（）。A. m 1 = m 2 α1= α2
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