在下面的事件中，哪一件会引起美国产服装需求量的变动，哪一件又会造成需求曲线的移动？（1)对进口

在下面的事件中，哪一件会引起美国产服装需求量的变动，哪一件又会造成需求曲线的移动？

(1)对进口外国服装的配额取消;

(2)美国公民收入的增加;

(3)全行业生产国内服装成本的降低，这种降低又以服装价格变得更低的形式反映在市场上。

Which of the following events would cause a movement along the demand curve for U. s. produced clothing, which would cause a ship in the demand curve？

a. the removal of quotas on the importation of foreign clothes

b. an increase in the income of U.5. citizens

c. a cut in the industry ' s costs of producing domestic clothes that is passed on to the market in the form. of lower clothing prices