该题所问是朝鲜如何激化最近的朝鲜半岛的紧张局势。选项A 说是撤销、撕毁有关禁止核试验的条约，而录音内容则完全没有提及禁止核试验的条约。.选项B 意思是开展洲际弹道导弹试验，录音内容则只说到朝鲜进行了一次用以给弹道导弹 试验作伪装的卫星试验，内容不相符，单复数使用也不一致。选项C 说是发动口水战 （ war of words ) ，这与录音中所说的升级言语赌注（ upped the rhetorical ante) 实际意思相符，所以C 为正确答案。选项D 错误地把录音中提到的South Korea-U.S. military drills说成朝鲜军演，也是错误选项。

[重点难点]
理解the rhetorical ante的意思及其与war of words的语义关联。

[录音原文]
Tensions between the two Koreas have been rising since North Korea carried out its fourth nuclear test in January， and a satellite rocket launch a month later that was widely seen as a disguised ballistic missile test. Pyongyang has upped the rhetorical ante in recent weeks, with nearly daily threats of nuclear and conventional strikes against the South in response to large-scale South Korea-U.S. military drills.