Another smoke alarm company, Kidde, has developed a subscription-based service that charges users in the US $5 (£3.71) per month for access to a fire monitoring service linked to the Ring doorbell app. "Trained agents can request emergency help and alert a customer's emergency contacts in the event of an alarm," explains Kidde on its website.
• 一致性（对相同科研成果，重复评测应稳定）
。业内人士推荐新收录的资料作为进阶阅读
}Match arms can contain any expression or block. A common pattern is returning from the enclosing function inside a match arm:
По факту произошедшего возбуждено уголовное дело по статье «Хулиганство».