单选题 The mail was delayed for two days because of the snowstorm.
  • A. held on
  • B. held up
  • C. held down
  • D. held off


【正确答案】 B
【答案解析】delay和holdup都表示“阻碍或延迟某人(某事物)”；hold on：坚持住；hold down：压住某事物、使某事物保持低水平；hold off：(雨、暴风等)未发生、延迟。