A.Under a stone.B.Under the window.C.In the kitchen.D.Near the living room.
A.Under a stone.
B.Under the window.
C.In the kitchen.
D.Near the living room.
A.Under a stone.
B.Under the window.
C.In the kitchen.
D.Near the living room.
B.Ask for a cheaper price on the television.
C.Change a store to buy a different television.
D.Be satisfied with what he has.
B.He developed a system called "star routes".
C.He built a lot of post offices.
D.He established the postal system.
B.To take charge of the mall for all the colonies in North America.
C.To introduce the use of stagecoaches to carry mail.
D.To deliver mail to the communities from railways by horse and wagon.
A.act like the police or firemen
B.take a big share of the job
C.rush from one place to another
D.do it frequently
Over the years, wireless communication technologies have fully proven effective for data as well as voice applications. It【B1】the efficiency and productivity of workers in a【B2】of other business environments. Key wireless technologies and【B3】including wireless LANs, cell telephone and packet data networks, global tracking systems, mobile computing, wireless Internet access, and enhanced paging and dispatch systems. Wireless LAN products,【B4】wire-based networks, connect PCs, laptops, PDAs, and more to LANs but offer one important【B5】they allow you to move or "roam"【B6】while staying tied to your【B7】or the information on your wired network【B8】you can communicate with them【B9】you are, without ever losing the【B10】to the network,
Digital's wireless LAN products are clear leaders in the marketplace. Digital【B11】the industry's most complete portfolio(系列服务) of mobile and wireless products.【B12】such as wireless PC Cards, wireless ISA adapters and superior wireless bridge, digital cordless telephony【B13】desktop devices to communicate wirelessly with other wireless【B14】, or access network files, services, and devices on the wired network.
Wireless communication technology can also be used for【B15】time data collection in locations【B16】considered too remote, inaccessible or environmentally hostile for conventional wired monitoring systems. Mobile hosts such as notebook and palmtop computers are now widely【B17】and affordable. Today's laptops and notebooks come loaded【B18】almost all imaginable wireless communications devices. This gives desktop PC customers a choice of wireless technology【B19】best suits their mobility and application needs.
Other markets for wireless technology include customer service, retailing, and health care.【B20】every market in the service sector of the economy is a candidate for wireless technologies and services.
【B1】
A.reduces
B.improves
C.disturbs
D.provokes
A.They died in the collapsed houses.
B.They died of an epidemic.
C.They were carried away by the flood.
D.They tried to walk in the floodwater.
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