In the commodity description “Longkou greenbean vermicelli”, the method to stipulate commodity quality is（）
A. By trademark or brand
By standard
C. By specification
D. By product origin
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Which of the following statements is true about British pub etiquette（）
A. It is OK to start up a conversation with someone sitting at a table
B. You should wait quietly for the waiters coming to serve you
C. You should tip bar staff in pubs
D. If you go to a pub with your friends, you should know how to buy the rounds
In international trade, the way to specify the quality of technological products is usually by（）
A. specifications
B. samples
C. place of origin
D. trademarks or brands
（）is a transfer from sale by buyer’s sample to sale by seller’s sample
A. counter sample
B. buyer’s sample
C. reference Sample
D. seller’s Sample
Which of the following statements is true about a British pub（）
All pubs have to close at 11 p.m. according to the law
B. Customers must leave the pub immediately when the pub owner sounds a bell
C. No one is allowed to stay after the pub closes
D. Pub signs display both the name of the pub and a pictorial representation of the name
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