Many experts remain skeptical about his claims.A:doubtful B:untouched C:certain

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问题 Many experts remain skeptical about his claims.

选项 A:doubtful
B:untouched
C:certain
D:silent

答案A

解析本句意思:许多专家对他的宣称仍很怀疑。skeptical怀疑的。doubtful怀疑的;Un- touched未触动过的,未受影响的;certain某个,肯定的;silent沉默的。
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