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
A
B
C
D
【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
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