is this research center --- the guests visited yesterday.

学习 时间:2026-04-04 17:16:54 阅读:8036
is this research center ___ the guests visited yesterday.A that B which C where D the one

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雪白的乌冬面

冷静的帆布鞋

2026-04-04 17:16:54

A 定于从句,这里是做宾语不能选C

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