题目:The following pairs of words are frequently used in academic settings. Look them up in the Longman Dictionary of Contemporary English Online (https://www.Idoceonline.com) and learn their meanings and registers. And use them in the following sentences. The pares are: rough/approximate; so/hence; show/demonstrate; leave out/exclude; beginning/commencement; furthermore/besides; claim/say; concerning/When it comes to The situation mobile threats is further complicated by the fact that personal smartphones are increasingly used to store and send confidential information.
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