纳税人领用的有奖发票票面金额连续（）个月超过核定定额的，主管地税机关应进行调查、测算，并按规定及时调整纳税人的定额。
参考答案：3个月
Several years after they got married he ____ chatting on the Internet until very late, which eventually resulted in their divorce.
A．took on
B．came to
C．took to
D．came about
何为本质安全？
