最新题目
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[A] small [B] few [C] rare [D] scarce..
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[A] variation [B] balance [C] frequency [D] stability..
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[ A] patterns [ B] designs [ C] plans [ D] schemes..
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[ A] location [ B ] position [ C] situation [ D ] condition..
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[A] stages [B] periods [C] years [D] sessions..
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[A] provided [B] since [C] whereas [D] though..
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