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It’s important for the figures       regularly .
A．to be updatedB．to have been updated
C．to updateD．to have updated
A

試題分析：考查不定式的復合結構。不定式的復合結構：for sb to do sth。根據(jù)句意說明使用被動語態(tài)。句意：數(shù)據(jù)經(jīng)常被更新是很重要的。故A正確。
點評：不定式的復合結構：for sb to do sth。在使用的時候要注意主動或被動的關系。
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