The upcoming convention invites______from anyone working or having research inte

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问题 The upcoming convention invites______from anyone working or having research interests in the field.

选项 A、contributions
B、solutions
C、additions
D、subscriptions

答案 A

解析在会议上，很多入会聚在一起讨论并决定重要事情，因此“大会恳请有关人士作出贡献”的句意最恰当。故选(A)contributions。

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