题目内容

Can you offer us machine tools ___ the following specification？

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To trade the people of all eoun tries the basis of equality and mutual ben efit is our established policy.

根据网络的覆盖范围以及网内计算机之间的距离，可以把网络分为局域125网和广域网（）

Gen erally we cover in sura nee __ defi nite （明确的） in structi ons from our clie nts.（）

A. i n abse nee of
B. in the abse nee of
C. in no abse nee of
D. in all abse nee of

选题包括两方面含义：一是确定_，二是确定_