【題目】It is reported that nearly one hundred thousand people visited the Great Wall during this National Day. ________, the Great Wall is one of the world's greatest places of interest.

A.All of a suddenB.Without doubtC.From time to time

【答案】B

【解析】

句意：據(jù)報道，在這個國慶節(jié)期間，近十萬人參觀了長城。毫無疑問，長城是世界上最棒的名勝之一。

考查介詞短語。All of a sudden突然；Without doubt毫無疑問；From time to time偶爾。根據(jù)前文“It is reported that nearly one hundred thousand people visited the Great Wall during this National Day”說長城很受歡迎，可知此處表示“毫無疑問”，故選B。

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