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British scientists have produced they believe is the world’s smallest Christmas card.A.whichB.whoC.t

编辑:chaxungu时间:2026-04-24 12:54:40分类:高中英语题库

British scientists have produced _____ they believe is the world’s smallest Christmas card.
A.whichB.whoC.thatD.what在线课程D
解析:
考查宾语从句.从句中动词believe缺少宾语,故选D.英国科学家生产出了他们认为是最小的圣诞卡片