以下句子描述正确的是()。
A、RS-449是物理层的一个标准ABCD
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Abusinessmeetingagendaisplan__abusinessmeeting.
ThissignsinAmericarepresents:
Wearenowexportingstrawandwillowproducts,embroideries,porcelainwares,jadecarvings,antiques,Chinesepaintings,silkflowersandvariouskindsoftoysandgifts.
What’sthemeaningofmoneyinthe5M().
Askingquestionsalsogivesyoutheopportunityto_______ifthisistherightplaceforyou.