填空题
What International Trade is about?

International trade is the exchange of capital, goods, and services across international borders or territories. In most countries, such trade represents a significant share of gross domestic product (GDP). While international trade has been present throughout much of history, (9)
Industrialization, advanced transportation, globalization, multinational corporations, and out sourcing are all having a major impact on the international trade system. (10) Without inter national trade, nations would be limited to the goods and services produced within their own borders.
International trade is, in principle, not different from domestic trade as the motivation and the behavior of parties involved in a trade do not change fundamentally regardless of whether trade is across a border or not. (11) The reason is that a border typically imposes additional costs such as tariffs, time costs due to border delays and costs associated with country differences such as language, the legal system or culture.
Another difference between domestic and international trade is that factors of production such as capital and labor are typically more mobile within a country than across countries. (12) and only to a lesser extent to trade in capital, labor or other factors of production. Trade in goods and services can serve as a substitute for trade in factors of production.
Instead of importing a factor of production, (13) An example is the import of labor-intensive goods by the United States from China. Instead of importing Chinese labor, the United States imports goods that were produced with Chinese labor. One report in 2010 suggested that international trade was increased when a country hosted a network of immigrants, but the trade effect was weakened when the immigrants became assimilated into their new country.
International trade is also a branch of economics, which, (14)
A. The main difference is that international trade is typically more costly than domestic trade
B. International trade allows us to expand our markets for both goods and services
C. its economic, social, and political importance has been on the rise in recent centuries
D. Increasing international trade is crucial to the continuance of globalization
E. a country can import goods that make intensive use of that factor of production and thus embody it
F. in which prices, or supply and demand, affect and are affected by global events
G. together with international finance, forms the larger branch of international economics
H. Thus international trade is mostly restricted to trade in goods and services