One report concludes that many schools do not have, or likely to have, enough computers to use them effectively.
or
nor
or are
nor are they
nor are not
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选nor而非or的原因可能在于平行。首先sb be likely to have 是正确搭配,而插入语前面的句子是 many schools do not have,没有提供be动词,所以需要在选项里填补,be作为助动词,应该与do平行,not并不为插入语所分享,所以为了表达插入语暗含的否定含义,需要在选项里填补表示否定的nor,而非or。
选nor而非or的原因可能在于平行。首先sb be likely to have 是正确搭配,而插入语前面的句子是 many schools do not have,没有提供be动词,所以需要在选项里填补,be作为助动词,应该与do平行,not并不为插入语所分享,所以为了表达插入语暗含的否定含义,需要在选项里填补表示否定的nor,而非or。
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