企源知识库

As soon as we have _______ your catalogue, we shall contact you by fax.
A、studied
B、inspected
C、examined
D、researched
【正确答案】：A
【题目解析】：study研究；inspect调查；examine检查；research调查句意：一旦我们研究了你们的目录，我们就会传真联系你们。