单选题
{{B}}Questions 71-73 refer to the following weather forecast.{{/B}}
单选题 What was the weather like before?
  • A. Very Cold
  • B. Snowy
  • C. Rather warm
  • D. Windy
【正确答案】 C
【答案解析】[解析] 71-73 After several warm days, it's time for another cold front. The cold front was set to hit North America's central area at dawn today and continue southwestward. With it, light snow will be seen in the southern part of North and Northwest America. Most of these areas will be buffeted by north wind registering 4 to 6 in force. After encountering the cold front, most northern areas are expected to see a sudden drop in temperature about 5 to 7 degrees centigrade.
单选题 When will be the cold front set to hit?
  • A. This morning
  • B. This afternoon
  • C. This evening
  • D. The day after tomorrow
【正确答案】 A
【答案解析】
单选题 How many degrees will be sudden dropped after the cold front?
  • A. 4 to 6
  • B. 4 to 7
  • C. 5 to 6
  • D. 5 to 7
【正确答案】 D
【答案解析】