【題目】Scientists from different countries are trying to_______ a good way to solve the energy problem.

A. keep up with B. come up with

C. catch up with D. meet up with

【答案】B

【解析】試題分析：句意：來自不同國家的科學家正在設法想出解決能源的問題。故選B，想出（主意，辦法）。

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