We explored the possibility of expansion at the conference.A:offered B:included

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问题 We explored the possibility of expansion at the conference.

选项 A:offered
B:included
C:accepted
D:investigated

答案D

解析本句意思:我们在会议上研究了扩大的可能性。explore在此意为“探索,研究”,与 investigate“调查,研究”意思相近。offer提供;include包含;accept接受。
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