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GreatasNewtonwas,manyofhisideas_todayandarebeingmodifiedbytheworkofscientistsofourtimeA)aretochallengeB)maybechallengedC)havebeenchallengedD)arechallenging
题目内容：
Great as Newton was ,many of his ideas_today and are being modified by the work of scientists of our time
A) are to challenge
B) may be challenged
C) have been challenged
D) are challenging优质解答
答案：C
要点：过去完成时,被动
表示牛顿的很多想法在如今已经受到很多挑战,并被当代科学家所修定.
A) are to challenge
B) may be challenged
C) have been challenged
D) are challenging
优质解答
要点：过去完成时,被动
表示牛顿的很多想法在如今已经受到很多挑战,并被当代科学家所修定.
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