皮皮学，免费搜题
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【单选题】
某患者屈光度为 -3.50/-0.50 × 180 ,配戴 7.6/-3.00/9.2 镜片时,片上验光为 -0.50 ,因配适偏松,选择试戴片 7.55/-3.00/9.2 ,理论片上验光值为A.
-0.75
B.
-0.50
C.
-0.25
D.
PL
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举一反三
【单选题】According to the Stolper-Samuelson theorem, an increase in the price of a country’s imports will:
A.
reduce the returns to all factors of production within the country.
B.
raise the returns to all factors of production within the country.
C.
reduce the returns to the factor of production used relatively intensively in the import-competing industry.
D.
raise the returns to the factor of production used intensively in the import-competing industry.
【简答题】书本第218页的图6-15题,泵卸荷时各电磁状态(+表示通电,-表示断电)
【单选题】According to the Stolper-Samuelson theorem, international trade leads to:
A.
reduction in the real income of the nation’s relatively abundant factor
B.
reduction in the real income of the nation’s relatively scarce factor
C.
increase in the real income of the nation’s relatively scarce factor
D.
none of the above
【单选题】The Stolper-Samuelson theorem indicates that given certain assumptions and conditions:
A.
a. the real return to the factor used intensively in the import-competing industry will rise in the long-run.
B.
b. the real return to the factor used intensively in the export industry will fall in the long-run.
C.
c. the real return to all the resources in an economy will increase.
D.
d. the real return to the factor used intensively in the export industry will rise in the long-run.
【单选题】The Stolper-Samuelson theorem indicates that given certain assumptions and conditions:
A.
the real return to the factor used intensively in the import-competing industry will rise in the long-run.
B.
the real return to the factor used intensively in the export industry will fall in the long-run.
C.
the real return to all the resources in an economy will increase.
D.
the real return to the factor used intensively in the export industry will rise in the long-run.
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