away from danger. The new AI system can sound alarms within just one second. This will save lots... for people to take action and get away from danger. The new AI system can sound alarms within just one second ……

to wake up naturally.A. It is important to wake up naturally.B. Sound alarms are better than light alarms.B. Sound alarms are better than light alarms.C. Setting many alarms can help prevent ……

often you should check your smoke alarms.B. How to repair broken smoke alarms.C. When you should ……

in the US. She also suggested that people try alarms that use light, not sound, to wake up, according.... She also suggested that people try alarms that use light, not sound, to wake up, according to CNN. ……

Smoke alarms are installed in homes and public buildings because they can help us prevent fires... that home smoke alarms should be replaced every 10 years. ……

?A. They can sound a warning when earthquakes happen.A. They can sound a warning when earthquakes.... They can be easily damaged in earthquakes.C. They can be easily damaged in earthquakes.D ……

unclear, however. During the fire, none of the 400 fire alarms in the area worked. The alarms would... is still unclear, however. During the fire, none of the 400 fire alarms in the area worked ……

reef (珊瑚礁) makes a sound like popcorn popping (爆米花爆开).A healthy coral reef (珊瑚礁) makes a sound like popcorn popping (爆米花爆开).Storms and earthquakes make noise, too. An earthquake hit Japan in 2011 ……

科学家制造出最响亮的水下声音。What can make the loudest sound underwater? Earthquakes (地震) and whales (鲸鱼) both.... But scientists recently found a way to make a sound that is even louder than that.Scientists from Stanford ……

a study about how different wake-up alarms can affect people’s morning states. The team... their grogginess levels. The results showed that the harsh (刺耳的) beeping sound seems to be related ……

a study about how different wake-up alarms can affect people’s morning states. The team... their grogginess levels. The results showed that the harsh (刺耳的) beeping sound seems to be related ……

Largest earthquakes in the world since 1900Source: US Geological SurveyBy Rachel Huggins and Paul Trap , USA TODAY ……

Disasters such as earthquakes, floods and fires can happen at any time. But are you prepared for these situations? Here’s what people in the US say: ……

, raise alarms and take corresponding measures to stop invasion. This will ensure the safety of data ……

这可不是普通的手机哦。It can send alarms to your parents. There is a "help" light on the phone. 遇到危险时按下求救按钮，手机就会自动发出求救信号。 ……