We conclude that both high myocardial adenosine level and high vagal tone may result in sinus bradycardia and A-V block.

实验结果提示：高腺苷含量及高迷走神经张力均可以起窦性心率减慢及房室传导阻滞。

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Its "Even-Going Tone" is equivalent to the High and Level, the Rising and the Falling Tones, and its "RisingTone" equivalent to the Falling-Rising Tome in Beijing speech.

“平去声调”相当于北京话的阴平、阳平、去声，“上声调”相当于北京话的上声。

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