【单选题】Trade can benefit society as a whole because it allows
A.
for a more efficient use of resources.
B.
for goods to be obtained at a lower opportunity cost.
C.
people to specialize in activities in which they have a comparative advantage.
D.
All of the above are correct.
【判断题】A free-trade area removes trade barriers between member countries, but allows the member countries to maintain their own trade barriers against trade with nonmember countries.
【单选题】The administration allows Thailand ______Indonesia trade benefits.
【单选题】()是新中国罪犯劳动改造工作的第一部法规。
【判断题】Trade allows all countries to achieve greater prosperity.
【单选题】下列哪个方法不能与方法public void add(int a){}重载()
B.
public void add(double b)
C.
public void add(int a,int b)
D.
public void add(float g)