By 1991 the level of foreign indebtedness has drastically altere

By 1991 the level of foreign indebtedness has drastically altered the role that many developing . countries play in the world trading system. Imports had been severely cut back and there was evidence of a scramble to export additional products, such as timber(木材),at heavy cost to the environment. Debt had emerged as the biggest single obstacle to development, with about 50 developing countries carrying a severe debt burden, over half of them in Africa.
At the end of 1990, developing countries owed $1,280 billion to Western countries, international aid agencies, the IMF, and banks. Their yearly earnings from international trade were under $1,000 billion ； the overall debt of developing countries was therefore mdre than the value of their exports. To service that debt—to pay interest and repay part of the capital—cost developing countries §143 .5 billion in 1990. They received $85 billion in aid and investment from abroad, thus paying richer countries nearly $60 billion more than they received. New aids and investment was wiped out by past debt. In 1991, according to OCED figures, the severely indebted low-income countries paid a higher proportion of their export revenue on debt service than at any time during the 1980s—31 .3% of such revenues, compared with 23. 8% in the 1980s.
In some developing countries half of the export revenue is used to service the debt.
A、True
B、False
【正确答案】：B
【题目解析】：由文章第二段倒数第一句话可知，负债严重的低收入国家将支付31.3%的出口税收来偿还债务，这比以往的比率都高。这与题干的说法是不一致的，故本题的说法是错误的。