选择题:Owning a smartphone may not be as smart as you thi

题目内容:
Owning a smartphone may not be as smart as you think. It may let you surf the Internet, listen to music and snap photos wherever you are…but it also turns you into a workaholic, it seems.
A study suggests that, by giving you access to emails at all times, the all-singing, all-dancingmobilephone adds as much as two hours to your working day. Researchers found that Britons work an additional 460 hours a year on average as they are able to respond to emails on their mobiles.
The study by technology retailer Pixmania reveals the average UK working day is between 9 and 10hours, but a further two hours is spent responding to or sending work emails, or making work calls. More than 90 percent of office workers have email-enabled phones, with a third accessing them more than 20 times a day. Almost one in ten admits spending up to three hours outside their normal working day checking work emails. Some workers confess they are on call almost 24 hours a day, with nine out of ten saying they make work emails and calls outside their normal working hours. The average time for first checking emails is between 6 am and 7 am, with more than a thirdchecking their first emails in this period, and a quarter checking them between 11 pm and midnight.
Ghadi Hobeika, marketing director of Pixmania, said, “The ability to access literally millionsof apps, keep in contact via social networks and take p
参考答案:

在计算机绘图中,尺寸起止符号通常用 斜线表示。( )

在计算机绘图中,尺寸起止符号通常用 斜线表示。( )A 30°B 45°C 36°D 90°

查看答案

电网运行中母线电压的幅值、_____ 和相角这三个参数常被指定为运行母线的状态量

电网运行中母线电压的幅值、_____ 和相角这三个参数常被指定为运行母线的状态量

查看答案