66 Neither a rising standard of living nor balanced trade, by itself, establishes a country's ability to compete in the international marketplace. Both are required simultaneously since standards of living can rise because of growing trade deficits and trade can be balanced by means of a decline in a country's standard of living.

If the facts stated in the passage above are true, a proper test of a country's ability to be competitive is its ability to________________________         -

(A)balance its trade while its standard of living rises

(B)balance its trade while its standard of living falls

(C)increase trade deficits while its standard of
living rises                          of _ ..:

(D)decrease trade deficits while its standard of living falls ':

(E)keep its standard of living constant while trade deficits rise

这个算什么题型,如果没有背景知识,或者这个相关的常识,那么这题如何做?

原文:Both are required simultaneously since standards of living can rise because of growing trade deficits and trade can be balanced by means of a decline in a country's standard of living.

说了两个事:１．上升的trade赤字能提升生活水平．

２．　生活水平的下降能平衡trade赤字．

就是说trade赤字（下降）和生活水平（上升）是矛盾的．

所以文章说俩加一起才能看出来这个国家的competitive，当然要能做到Ａ，那就是很好的了．

可能有的人能把这个归到一种理论里面．不过我们不懂的话，也能做这题的．