【单选题】Now many manufacturers build their business reputations by enclosing ______ in the new products in case of damage in shipment or by incorrect operation.
A．categories
B．accessories
C．analogies
D．observatories
网考网参考答案：B
网考网解析：
accessory附件；category范畴，门类；analogy比拟，类比；observatory观察站，天文台。故选B。
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