皮皮学,免费搜题
登录
搜题
【单选题】
Music and Driving Listening to loud music while driving can seriously hamper reaction times and cause accidents, new research suggests. A Canadian study found people took.up to 20% longer to perfer,physical and mental tasks to loud music.If motorists were delayed that long at the wheel they could suffer a fatal crash, warned the RAC Foundation, a British motoring organization.Edmund King,the RAC Foundation's executive director, said the study showed that 'not only is loud music a nuisance to others, it could also be the cause of accidents'. Earlier research by the RAC Foundation found drivers were twice as likely to skip a red light while listening to music.In the Canadia/a study volunteers carried out tasks while listening to levels of noise varying from 53 .decibels (equivalent to an office environment) to 95 decibels (equivalent to an oil rig).Researchers found reactions to be significantly decreased at higher noise levels for both physical and mental work.At 95 decibels reaction times to tasks that involve decision making plummeted (骤然减少) by 20%.Edmund King said: 'The findings of the Canadian study are bad news for decibel-loving drivers, as they prove that not only is loud music a nuisance to others, it could also be the cause of accidents on the roads.' Drivers are at even greater risk if they listen to music with a pounding beat rather than more relaxed tunes, according to experts. Conrad King, consultant psychologist to the foundation, said..'It is important that drivers choose their music carefully when driving, as up-tempo music has been shown to cause drivers to have double the amount of accidents as those listening to slower music.'In general, if music is above 60 beats per minute, listeners experience a faster heart rate and increased blood pressure.'It doesn't matter if you listen to opera, classical or the latest rave music.It's the speed of the beat that counts.' 第 16 题 According to scientific research, people may spend more time doing .physical work if listening to loud music while doing the task.
A.
Right
B.
Wrong
C.
Not mentioned
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】调试超声波检测仪时,测得t0=5μs,已知某测点声距L=40Cm,仪器显示声时为105μs,则超声波在混凝土中传播的声速为( )。
A.
3 636m/s
B.
3 810m/s
C.
4 000m/s
D.
3 000m/s
【判断题】协作型开发方式的实质是开发企业专注于自己最擅长的业务或核心业务,然后购买其他社会专业机构提供的最擅长业务服务。
A.
正确
B.
错误
【简答题】设函数f(x)在[0,+∞)上连续单调增加且f(0)≥0,试证明函数 在[0,+∞)上连续且单调增加(n>0).
【简答题】设函数f(x)在[0,+∞]上连续.单调不减且f(0)≥0.试证函数 在[0,+∞]上连续且单调不减(其中n>0).
【单选题】调试超声波检测仪时,测得t0=5μs,已知某测点声距L=40cm,仪器显示声时为 105μs,则超声波在混凝土中传播的声速为( )。
A.
3636m/s
B.
3810m/s
C.
4000m/s
D.
3000m/s
【简答题】设函数f(x)在(-∞,+∞)上连续且为偶函数,记 F(x)=∫ 0 x (2t-x)f(t)dt 证明:F(x)也是偶函数.
【单选题】急性白血病最严重的感染是
A.
肺部感染
B.
肛周炎
C.
口腔炎
D.
败血症
E.
尿路感染
【简答题】设函数f(x)在[-1,1]上连续,且满足 求f(x).
【单选题】翻译“鸡肉粉”
A.
phở gà
B.
phở bò
C.
bún chà
【单选题】调试超声波检测仪时,测得t0=5μs,已知某测点声距L=40cm,仪器显示声时为105μs,则超声波在混凝土中传播的声速为( )m/s。
A.
3636
B.
3810
C.
4000
D.
4200
相关题目: