单选题：Fieldrepresentativeswouldliketheirmanagerhavingagoodcommando

题目内容：

Fieldrepresentativeswouldliketheirmanagerhavingagoodcommandofproductknowledgeandsellingskills,accordingtoarecentstudy.

参考答案：

答案解析：

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Questions9to12arebasedontheconversationyouhavejusthe.ard. A．Astudythattheirchem

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Questions16to18arebasedonthepassageyouhavejustheard. A．Theyoftenregretwritingpo

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