单项选择题
在七色中，（ ）纯度最高。
A.红色
B．橙色
C．蓝色
D．黄色
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for, claim, on, in, at, it, that under, with, insurer, insurance, call Dear Sirs, Thank you for your letter of 20 May with a claim (1) breakages. Your (2) is for GB￡200 (3) the shipment delivered on 18 May to your order No．2423. The goods were (4) perfect order and properly packed in cardboard boxes．They were then placed in a sealed container (5) our factory． (6) is difficult to imagine how any breakages could occur. Fortunately, the goods were fully insured (7) our standard policy (8) Lloyds of London, but in order to make a claim we shall need much more information. Please make a complete inventory of the broken items and send it to us．We shall then contact our (9) ．Their agent will probably (10) on you to check the consignment. I apologize for the inconvenience caused.Yours faithfully,