all inspections are carried （　）conscientiously to the best of our knowledge and ability.

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We have pleasure in advising that a （　） was established in your favour through Bank of China.

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The products described above have been subjected to （　） treatment of at least 80ºC for 30 minutes.

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The above mentioned condition was caused （　）the process of manufacturing.

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We give you on the attached sheet full details regarding packing and markin9，which must be strictly__________．

来源：考试资料网2014-09-27