The task varied in difficulty according to the pitch of the second tone.

这项任务的难度随着第二个音调的高低而变化。

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Imagine you are listening to a 10-second tone.

假设你正在听一段十秒钟的音乐。

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Second tone type of phrase echoes the Ministry, as if voices echoed in the valley, creating a come and go, pre-loaded atmosphere.

第二声部回声式的短句，仿佛歌声在山谷中回荡，营造出此起彼伏，一呼百应的气氛。

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") Alcoa set the tone for the second-quarter growth theme on Monday when it cited strong end-markets for its second-quarter growth. (See "Alcoa Mines Better Demand To Beat Street.

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While, in relation to most she has magnificent skin, hair, and stature, the one wrinkle she may think she has or the slight difference in body tone or shape which is the natural consequence of aging, causes her to come in second to a barely in-her-twenties young woman with perfect skin, perfect body and muscle tone, and is known to be 22.

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His closely-watched visit could set the tone of foreign policy in the region for his second term, analysts say.

BBC: Obama Nowruz message: Iran must 'reduce nuclear tension'