An Intranet is (71) the application of Internet technology within an internal or closed user group．Internets are company and not do not have a (72) connection to the Internet．Usedproperly an Internet is highly effective corporate tool，capable of regularly (73) information toempower the workforce with the information needed to perform their roles．Used in this Way，Internet represent a step towards the (74) office．

A．painless

B．painness

C．paperless

D．paperness

机动车行驶时，驾驶人、乘坐人员应当按规定使用安全带，摩托车驾驶人按规定戴安全头盔就可以了。