第13题: [单项选择]{{I}}{{B}}Questions 14 to 16 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now listen to the passage.{{/I}}{{/B}}______ of the population is illiterate. A. 50% B. 2% C. 4% D. 6% 参考答案:B