20．這樣他們就能有大量自由支配的信息．
This way they have abundant informationattheircommand．

分析 這樣他們就能有大量自由支配的信息．

解答 答案是at their command．考查詞組at one's command，可自由支配．主語they對應(yīng)的所有格是their．故答案是at their command．

點(diǎn)評 解答此類題目，首先需要明確考查的詞組及固定搭配，然后根據(jù)英語翻譯習(xí)慣和相關(guān)語法填寫正確的答案．

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