_____ your Enquiry No. 123, we are sending you a catalog and a sample book for your reference.
A.According
B.As per
C.As
D.About
正确答案是B
_____ your Enquiry No. 123, we are sending you a catalog and a sample book for your reference.
A.According
B.As per
C.As
D.About
正确答案是B