According to Capoco, the surprising thing about a city bus is that about 60% of the framing cost is spent on the driver, There's a drive to automate buses and therefore to halve (把……减半) the operating costs. The pods (容器)that make up Capoco's driverless bus are designed to run on electricity but can be adapted to use biofuel, or hydrogen(氢)in a fuel cell, and can be updated to run on the cleanest fuel available.
The vehicle navigation technology combines satellite positioning and a calibration (校准)system using magnets positioned in the road every few metres. The bus navigates using the onboard route map and calibrates every ten meters to ensure that the onboard system knows exactly where the bus is on the route.
The system would start with exclusive lanes using the sensors to remain in the lane but in the longer term the aim is to run the vehicles with traffic around them. There are already a lot of automatic guided vehicles running inside factories alongside people and forklift trucks on the same basis.
The next step is to build a trial system with two vehicles to prove the basic functionality of the vehicles. Next year, a pilot system of up to 12 vehicles could be introduced in a closed environment like a campus or an airport to test the installation further.
With no driver costs, you can run vehicles as small as five meters long and carrying 24 people, and you can run them more frequently and on more routes. Transport in the future could be as easy as hopping on a horizontal lift. For the nervous, the lift is probably a more reassuring vision than a driverless bus but, if the mobilicity system is tested successfully, driverless buses could become an everyday sight in the cities of the future!
What is said about the city transport system in the UK?
A.It has a long history.
B.It's green and economical.
C.More than half of the city buses will be replaced.
D.Driverless bus is still not realized now.
第1题
关于颅内压增高下列哪项叙述正确
A.舒张期颅内压略有增高
B.收缩期颅内压略有增高
C.吸气时颅内压略有增高
D.呼气时颅内压略有增高
E.B+D
第2题
关于脑外伤颅内压增高,错误的是
A、先天性畸形可增高颅内压
B、脑缺氧不会引起颅内压增高
C、颅内占位性病变可增高颅内压
D、颅腔内容物体积增大可使颅内压增高
E、按病因可分为弥漫性和局灶性颅内压增高
第3题
A.弥漫性颅内压增高不存在明显的压力差
B.病人对局限性颅内压增高耐受性较高
C.颅内恶性肿瘤多发生亚急性颅内压增高
D.颅内良性肿瘤多发生慢性颅内压增高
E.高血压脑出血多发生急性颅内压增高
第4题
关于颅内高压征,错误的是
A.颅内压增高时,血压可以增高
B.颅内压增高时,可以出现呕吐
C.发生枕骨大孔疝时,一定先发生小脑幕切迹疝
D.人工呼吸机过度通气可以降颅压
E.颅内压增高时,渗透性利尿剂是有效的
第5题
关于颅内高 压的护理,下列哪项是错误的?
A床头应抬高至15°~30°
B应用激素可降低颅内压
C颅内高 压头痛剧烈时,可用吗啡止痛
D过度换气可降低颅内压
第7题
关于颅内压增高的临床表现,下列哪项描述不正确
A、根据病变发展的快慢,又分为急性、亚急性和慢性颅内压增高
B、头痛多为一侧阵发性跳痛
C、呕吐为喷射状呕吐
D、头痛、呕吐和视盘水肿合称为颅内压增高"三联征"
E、患者可出现意识障碍和生命体征变化
第8题
A.频繁呕吐者应予以禁食,以防吸入性肺炎
B. 便秘患者应予以高位灌肠,以防便秘引起颅内压增高
C. 昏迷患者需考虑气管切开,以防呼吸不畅引起颅内压增高
D. 颅内压增高者需密切观察神志、瞳孔和生命体征变化,以及时发现和处理脑疝
E. 吸氧、降温有助于控制颅内压增高
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