we measure an earthquake's strength by ___ scientists have n

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we measure an earthquake's strength by ___ scientists have named the Richter Scale.
我觉得这里填that 特指是那些科学家
A.that B.which C.what D./

首先区分,that何时特指,that 做指示代词时,表示特指,这个,那个.
但是楼主请细看,空格后面拥有完整的主谓宾,这是一个句子,所需要的是连词而代词,所以即便选用that 这里也是作为连词而非指示代词表特指.
选用哪个连词要看具体在句子中充当什么成分.
scientists 主语
have named 谓语
the Richter Scale宾语 .
name sb sth 给某人起名叫什么
所以 name缺少直接宾语,what 做name的直接宾语,that在宾语从句中不能作宾语,不充当成分,而which是哪个的意思,不符合题意

we measure an earthquake's strength by ___ scientists have n There's an "ear"in the word p_____.We usually have ___ lunch 英语翻译An earthquake is a shaking of the ground caused by the s When an earthquake happens,we should stay cool A.as well B.n Scientists have made robot ___ like man 7.The room ___ (measure) five metres by four. Can we find ____ before an earthquake? Every possible measure have been taken by the government to We gain strength,and courage,and confidence by each experien earthquake n.地震复数加S? We are thankful for the great inventions by the scientists . We will do something to help those (影响)by earthquake