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【单选题】
短波传播存在寂静区,其主要原因是—— 。A.
地波传播，因发射台太远信号衰减，接收不到
B.
天波传播存在跃距，且跃距大于地波传播的最大距离
C.
天波传播的多径传播引起衰减
D.
地波传播，因发射台太远信号衰减，接收不到; 天波传播存在跃距，且跃距大于地波传播的最大距离
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举一反三
【单选题】The infant industry argument was an important theoretical basis for
A.
Neo-colonialist theory of international exploitation.
B.
Import-substituting industrialization.
C.
Historiography of the industrial revolution in Western Europe.
D.
East-Asian miracle.
【简答题】婴幼儿眼球前后距离较短，物体成像于视网膜后面，称()。
【单选题】Under which of the following situations will the infant industry argument for protection stand to be valid?
A.
New firms are unable to obtain funds from the financial owing to inherent imperfections in the banking system.
B.
The benefits from the early business investments accrue to the firms making these early investments.
C.
Firms that produce important military hardware cannot be established without government support.
D.
The more a country exports, the more the price of its exports fall relative to its imports.
【单选题】The infant industry argument is criticized because it relies on an assumption that:
A.
new manufacturing industries in developing nations can initially compete with established industries in developed countries.
B.
selling goods in a foreign market at below their "fair" market value is legally and ethically justified.
C.
the domestic industry in a developing nation lacks the capacity to meet demand.
D.
firms are unable to make efficient long-term investments by borrowing money from the domestic or international capital market.
【简答题】婴幼儿眼球前后距离较短，物体成像于视网膜后面，称为 。
【多选题】样品邮寄费的支付方式有（ ）。
A.
Freight Prepaid
B.
Pay by the Third Party
C.
Freight Collect
D.
Pay by Post Office
【单选题】The infant industry argument is based on the idea of
A.
learning-by-doing.
B.
absolute productivity advantage.
C.
global monopoly.
D.
countervailing duties.
【多选题】样品邮寄费的支付方式有( )
A.
freight prepaid
B.
pay by the third party
C.
fright collect
D.
pay by post office
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