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    【题目】【1】最早一批人具体是在什么时候来到我们现在了解的加利福尼亚地区的，谁也说不清楚。

    __________ the first people arrived in __________ California, no one really knows.

    【2】虽然中国移民在淘金热时期就开始来到 (美国) ，但是更多的中国移民却是在19世纪60年代为了修建贯穿美国东西海岸的铁路而来的。

    Although Chinese immigrants began to arrive during the Gold Rush Period, __________ the building of the rail network from the west to the east coast __________ California in 1860s.

    【3】人们认为，要不了多久，多种国籍的混合将会非常之大，以至于不可能存在一种主要的种族或文化群体，而只是多种族、多文化的混合体。

    __________ the mix of nationalities will be __________ no distinct major racial or cultural groups, but simply a mixture of many races and cultures.

    【答案】见解析

    【解析】【1】 Exactly when; what we now know as

    【2】 it was; that brought even larger numbers to

    【3】 It is believed that before long; so great that there will be

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