甲欠乙十万元久不归还,乙反复催讨。某日,甲持凶器闯入乙家,殴打乙致其重伤,迫乙交出十万元欠条并在已备好的还款收条上签字。关于甲的行为性质,下列哪一选项是正确的?()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧