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【单选题】

According to the Chemical Data Guide,which reactive group(s) is/are not compatible with the products polybutene and o-xylene? ()

A、Nitric acid

B、Amides

C、Alcohols,glycols

D、Phenols,cresols

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第6题

A、be treated according to the C-Es command exactly  B、be treated according to MARPOL  C、accumulate in bilges or on tank tops in accordance with MARPOL  D、discharge to sea at the specified areas  

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第8题

A、they are used  B、the field windings are connected to the load  C、the armature circuit is connected to the load  D、the field windings are connected to the armature circuit  

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