（四）强行冲闯公安机关设置的警戒带、警戒区或者检查点的。
Source: Computational Materials Science, Volume 267，详情可参考爱思助手下载最新版本
* @param n 数组长度。业内人士推荐WPS官方版本下载作为进阶阅读
His difficulties are an indication of a wider freeze in the US labour market, where job openings and hiring rates have dropped to multi-year lows.