The machine has an enormous advantage ______ it is equipped with an automatic control system.

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问题 The machine has an enormous advantage ______ it is equipped with an automatic control system.

选项 A、since that
B、in that
C、at that
D、so that

答案B

解析 考查原因状语从句引导词。in that意为“由于,因为”,相当于because,可引导原因状语从句,为正确答案。又如:My mother can’t get about in that she has rheumatism. (我母亲因为患有风湿而不能下床走动。)at that意为“此外,而且”,是固定搭配,但为副词,不能引导从句,例如:It is a solution, and a good solution at that. (这是个解决办法,而且还是个不错的办法。)so that意为“因此,以至于”,是复合连词,可以引导从句,但在这里与题意不符。
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