首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
It’s when you are out of cellphone range and farthest from help when you’re going to need urgent assistance. Think of being aboa
It’s when you are out of cellphone range and farthest from help when you’re going to need urgent assistance. Think of being aboa
admin
2012-08-05
55
问题
It’s when you are out of cellphone range and farthest from help when you’re going to need urgent assistance. Think of being aboard a boat sinking at sea, or crashing a motorcycle in the desert while on a camping trip.
That’s what satellite phones are for—they send a signal directly to a satellite from anywhere with a clear view of the sky without need of a cell tower. But with per-minute fees of $ 1 or more, you’ll still need a regular mobile phone for everyday use. That means you need two phones. Just what you want when hiking—two weighty pieces of hardware to tote (随身携带). But now there is a hybrid (合成的) mobile-satellite phone, a single device that can connect to either network. Called the TerreStar Genus, this phone is available through AT&T for $ 1 070. As with any hybrid, compromises are made. For one, the mobile phone portion runs on the clunky Windows Mobile 6.5.3 operating system, so there isn’t the intuitive ease of the newer Windows Phone 7 system.
Using the satellite side of the phone also requires some adjustments. Because the phone has no external antenna (天线), you have to hold the phone just so, or your palm will block the signal. You also have to make sure the phone is oriented toward the TerreStar-1 satellite at 111 degrees west. Also make sure to listen to the phone using the ear nearest the satellite, as your head can block the signal, along with mountains, trees or buildings.
Some of those issues can be addressed with a $ 300 optional external antenna, but that adds more bulk. Even with the antenna the Genus is limited to North America and up to 200 miles offshore. Service excludes Mexico and Canada, but Canada is within range, and will be offered later, said TerreStar.
Another thing to get used to is the time lag. It can take up to two minutes for the phone to initialize (初始化), acquire and connect to the satellite. You do get audible alerts to let you know the phone is working on it. When you get the connection, there are pauses between the time you speak and the listener hears what you say, much like first generation VoIP calls. The reason is that the satellite bouncing your call is 22 000 miles or more away. All of that sophisticated hardware takes a toll on the batteries. In satellite mode expect 4 hours of standby time and 1.3 hours talk time.
TerreStar said the phone is made with first responders in mind—firefighters and the police who need communications in an emergency when cell towers might be out. But it is also an option for anyone who wants the security of a communications backup system—and is willing to pay for it.
What can we learn from the second paragraph?
选项
A、The regular mobile phone doesn’t need a cell tower.
B、People only need a satellite phone when hiking out.
C、The satellite phone portion runs on the Windows Phone 7 system.
D、The satellite phone is impractical in people’s everyday life.
答案
D
解析
细节辨认题。定位段明确指出卫星电话跟普通手机不一样,不需要手机基站,但是由于费用高,日常生活中仍然离不开普通手机。也就是说出游时,需要两部手机。由此看出,卫星电话在日常生活中不实用。因此答案为D)“卫星电话在人们的日常生活中是不切实际的”。
转载请注明原文地址:https://kaotiyun.com/show/Hnb7777K
0
大学英语六级
相关试题推荐
A、Aboutfourdays.B、Aboutthreedays.C、Abouttwodays.D、Aboutoneday.C女士告知男士将于周二到达纽约,周四下午将从纽约出发去底特律,即在纽约大约待两天,故选C项。
PartⅡReadingComprehension(SkimmingandScanning)Directions:Inthispart,youwillhave15minutestogooverthepassageq
A、TheIceAge.B、TheexhibitionattheAmericanMuseumofNationalHistory.C、TheIceAgepeople.D、Howtobuildhouses.C对话紧紧围绕
Manyprivateinstitutionsofhighereducationaroundthecountryareindanger.Notallwillbesaved,andperhapsnotalldeser
Manyprivateinstitutionsofhighereducationaroundthecountryareindanger.Notallwillbesaved,andperhapsnotalldeser
Technologywassupposedtosetusfree,butinthecarindustryit’slockingusoutofourvehicles.Andasmanymoreearkeysc
A、Ratherdifficulttoplease.B、Rudetowomendrivers.C、Talkativeandgenerouswithtips.D、Differentinpersonality.D对话中女士说喜欢
Isyourfamilyinterestedinbuyingadog?Adogcanbeahappy【36】toyourfamily,butifyouchoosethewrongkindofdog,the【
A、Sheshouldfollowthehumannature.B、Strangersarenothingtobeafraidof.C、Feelingnervousisnothingimproper.D、Sheshou
Manyhuntingandgatheringpeopleofthelate10thcenturyhaverecentlyadoptedsomeformoforganizedagricultureto______th
随机试题
TheCommonwealthofEnglandcreatedbyOliverCromwelllastedonly______years.()
通过问诊就可以作出明确诊断的疾病是
近些年来,许多30多岁的年轻人患有糖尿病,不得不依靠注射胰岛素来降低血糖。说明糖尿病也往越来越年轻化的趋势发展。下列非磺酰脲类胰岛素分泌促进剂药物的叙述中,不正确的是()
招标采购项目人力资源管理的工作内容中,属于团队建设管理要素的是()
如果监理工程师与建设单位或施工企业串通,弄虚作假、降低工程质量,从而引发安全事故,则()
职工参与企业民主管理的形式有()
流行性乙型脑炎流行于冬春季。()
某玩具店新购进飞机和汽车模型共30个,其中飞机模型每个有3个轮子,汽车模型每个有4个轮子,这些玩具模型共有.110个轮子。则新购进的飞机模型有()个。
下面关于听证的说法不正确的是()
网桥是()。
最新回复
(
0
)