单选题 As a result of overwhelming demand, customers can expect shipping ______ of at least two weeks through December.
  • (A) agents
  • (B) invoices
  • (C) delays
  • (D) receipts


【正确答案】 C
【答案解析】[词汇] delay延期
[错误答案] (A)代理人(B)发票(D)收据