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What is the main idea of the news item? [br] [originaltext] The United State
What is the main idea of the news item? [br] [originaltext] The United State
游客
2023-12-08
59
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问题
What is the main idea of the news item? [br]
The United States is introducing a new public alert system that will deliver warnings to mobile phones in the event of emergency. The system is first being rolled out in New York and Washington and will operate nationwide by April.
Top mobile phone company executives joined federal officials and New York Mayor Michael Bloomberg at the World Trade Center site to announce the so-called Personal Localized Alerting Network, or PLAN. Bloomberg said the system will allow cell phones to receive free alerts about imminent safety threats.
"If people need to take action, the system will transmit instructions accurately and in a timely manner, which is something that could save countless lives," he said.
The warnings will be localized by using only local cell phone towers. The notifications could warn residents and visitors about an approaching tornado, hurricane or storm. If there is an urban terror threat, everyone in the area with a cell phone can be warned and advised what to do.
All major U.S. cell phone companies will participate in the system. The system will give priority to emergency messages, overriding all regular telephone and text traffic.
选项
A、Natural disasters and man-made attacks.
B、Technological catastrophes.
C、Urgent warnings about fires and flood.
D、Anti-government demonstrations.
答案
A
解析
本题问及人们通过这一系统能够接受到什么信息。这一系统能够告知当地居民和游客即将来临的龙卷风、飓风或风暴。如果某一城市出现恐怖威胁,在这个地区的每个人都可以收到警报和相关建议。故正确答案是A。其他三项并未提到。
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