单选题 Falling sales and rising overheads have obliged the company to review each customer's ______ limit.
A. credit B. currency C. check D. certificate

【正确答案】 A

【答案解析】credit意为“信誉，信用”；currency意为“货币，流通”；check意为“支票，汇票”；certificate意为“证书，证明书”。credit limit是习惯搭配，意为“赊购限度”。