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        1. They wonder________robots will make humans lose their jobs or not
          A. that                   B. if                   C. whether
          C
          that那個(gè),引導(dǎo)賓語(yǔ)從句不做句子成分,只起引導(dǎo)作用;if是否,如果;whether是否。句意:我想知道機(jī)器人是否會(huì)讓人們失去他們的工作。在表示是否時(shí),whether常和or not搭配使用,故選C。
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