标签：英语三级考试试题,英语三级考试试卷, 2017北京地区普通高等学校英语统一考试试题(2),
Passage2
Questions 11 to 15 are based on the following passage:
In Africa we experience enormous problems of underdevelopment, illiteracy, massive internal and external debts, population explosion, high mortality rates(死亡率), etc.(4) All these and similar problems have been known for a long time and need no restatement. What needs， 大小：376 KB