男,35岁,右膝关节内侧疼痛,肿胀半年,曾在外院摄X线片,见右胫骨上端内侧有一5cm×4cm大小透
A.病灶刮除+植骨
B.病灶不处理,严密观察
C.瘤段切除,假体植入
D.瘤段切除,植骨
E.放射治疗
A.病灶刮除+植骨
B.病灶不处理,严密观察
C.瘤段切除,假体植入
D.瘤段切除,植骨
E.放射治疗
第3题
把劳动生产率定义为Y/L。即产出量除以劳动投入量。从增长核算方程式开始,说明劳动生产率的提高取决于全要素生产率的提高和资本—劳动比率的提高。特别说明:
This question asks you to analyze in more detail the two-sector endogenous growth model presented in the text.(提示:你会发现下面的数学技巧是有帮助的。如果z=ωx,那么,z的增长率接近于ω的增长率加z的增长率。这就是说:△z/z≈△ω/ω+△x/x。)
Labor productivity is defined as Y/L, the amount of output divided by the amount of labor input. Start with the growth-accounting equation and show that the growth in labor productivity depends on growth in total factor productivity and growth in the capital-labor ratio. In particular, showthat in. (Hint: You may find the following mathematical trick helpful. If z=ωx, then the growth rate of z is approximately the growth rate of w plus the growth rate of x. That is, △z/z≈△ω/ω+△x/x。)
第7题
The 1983 Economic Report of the President contained the following statement:“Devoting a larger share of national output to investment would help restore rapid productivity growth and rising living standards.”Do you agree with this claim? Explain.
第8题
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