The tests used in standards for evaluating smoke alarms were developed back in the 1980s. However, despite changes in building materials since then, smoke alarms remain reliable, says Chagger: "They still respond to all the main fires we get today."
When asked by the BBC about the formulation of the deal and whether mistakes had been made, an NHS spokesperson said there were "several factors which influence a procurement strategy and construct of the contract", without elaborating further.
，更多细节参见51吃瓜
「我上任前十個月結束了八場戰爭」
В Финляндии предупредили об опасном шаге ЕС против России09:28
Tony Jolliffe BBC