2. 外语
  3. A scientific law is liable at anytime to need______; that is an eternal truth.

A scientific law is liable at anytime to need______; that is an eternal truth.

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问题 A scientific law is liable at anytime to need______; that is an eternal truth.
选项 A、modifying
B、changing
C、revising
D、adjusting
答案A
解析 A项“modify修改”符合题意，如：The equipment may be modified to produce VCD sets．(这设备可以经过改装用来生产光碟机。)其他三项“B项change变换，替换，转换；C项revise重新考虑并修订，修正；D项adjust调节，调整”都不正确。本题的意思是科学定律随时都可能需要修改。因此A项为正确答案。
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