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【单选题】
系统性红斑狼疮的发病与下列哪一项无关（ ）A.
免疫缺陷
B.
皮肤化脓灶
C.
日光过敏
D.
遗传倾向
E.
感染因素
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举一反三
【单选题】The growth rate of real GDP per person in the United States has
A.
averaged approximately 2 percent per year over the past century.
B.
has consistently been 2 percent per decade over the past century.
C.
has been the highest in the world over the past 5 decades.
D.
has increased every year over the past century.
【单选题】Labor productivity, real GDP per labor hour, increases if
A.
saving and investment cause an increase in the quantity of capital per worker.
B.
there is an increase in the accumulation of human capital.
C.
new technologies are continuously discovered.
D.
All of the above answers are correct.
【简答题】行政复议机关应当审查具体行政行为的（）
【单选题】If capital per hour of labor decreases, real GDP per hour of labor
A.
decreases because the level of technology decreases.
B.
increases because the level of technology increases.
C.
increases for a given level of technology.
D.
decreases for a given level of technology.
【单选题】Over the past 100 years real GDP per person in the United States, on average, has
A.
decreased by about 5 percent per year.
B.
increased by about 2 percent per year.
C.
increased by about 5 percent per year.
D.
increased by about 10 percent per year.
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