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2+2排气开关互锁失效的原因是什么？如何处理？
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A: Shall we begin to discuss the terms of insurance right now? B: OK. A: We have a deal on CIF price．It means that the insurance should be borne by you, right? B: Certainly．The premium should be paid by us．All our export goods sold on CIF terms arc insured with the PICC．They provide many kinds of coverages of marine insurance, such as F．P．A．, W．P．A．, A．R．and so on. A: What kind of coverage will you arrange for our order then? B: Usually we']] only insure W．P．A．for this kind. A: We hope you can cover the Packing Breakage Risk for us. B: We can do that for you．But additional premium should be on your account. A．We will pay that．So, please insure the consignment against W．P．A．and Packing Breakage Risk for 150% of invoice value. B: I am sorry, we only can insure goods for 110% of the invoice value．For 150% , the extra premium will be borne by you. A: Then we made a deal that we will insure this consignment against W．P．A．and Packing Breakage Risk for 150% of invoice value．Is there anything else about the insurance clause? B: I don't think so.
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