题目内容

银抗硫化变色性能评价方法主要有两种,分别是()试验法和()试验法。

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洗衣粉对白银饰品有一定的腐蚀作用,因此,不宜佩带白银饰品从事洗涤工作。

A. 对
B. 错

若茬口暗淡,无粒状闪光,则可能是高成色的金银饰品。

A. 对
B. 错

白银首饰可通过在其表面镀铑或镀金的办法来解决它易氧化的问题。

A. 对
B. 错

Isabella: I’m calling to inquire about your requirements for (1) ____________. In addition to some generally accepted rules, do you have any particular requirements?Maria: Well, (2) _____________________________ on company letterhead with a valid signature or company stamp. As Share-it will be processing your order (3) _____________________the software publisher, please make your PO out to Share-it.Isabella: Yes, I’m clear about that. (4) ___________________________ to process our order more quickly?Maria: The product name and specific product ID, (5) ___________; the number of items desired; the name the product license will be issued to; your billing address and (6)__________________ , if different; name, phone and fax number of the contact person for your order; the e-mail address to which (7) _________________________________________, and your e-mail delivery address, if different; and finally, (8)___________________________.Isabella: Could you please send me the above information? I can’t write down so much at the moment.Maria: Of course. (9)______________________. I’ll send you all the required documents in our (10) _____________. And you just fill in the relevant information. Then, return the documents to our company.

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