D
The Erie Canal was the first important national waterway built in the US. It crossed New York from Buffalo on Lake Erie Troy to Albany on the Hudson River. It joined the Great Lakes with the Atlantic Ocean. The canal served as a route over which industrial goods could flow into the west, and materials could pour into the east. The Erie Canal helped New York develop into the nation's largest city.
The building of the canal was paid for entirely by the state of New York. It cost $7,143,789, but it soon gained its price many times over. Between 1825, when the canal was opened, and 1882, when toll charges(过运河费) were stopped, the state collected $121,461,891.
For a hundred years before the Erie was built, people had been talking about a canal which could join the Great Lakes and the Atlantic Ocean. The man who planned the Erie Canal and carried the plan through was De Witt Clinton. Those who were against the canal laughingly called it "Clinton's Ditch(沟)". Clinton talked and wrote about the canal and drew up plans for it. He and Governor Morris went to Washington in 1812 to ask for help for the canal, but they were unsuccessful.
Clinton became governor of New York in 1817, and shortly afterwards, on July 4, 1817, broke ground for the canal in Rome, N.Y. The first part of the canal was completed in 1820. As the canal grew, towns along its course developed fast. The length of the canal is 363 miles.
We can see that the Erie Canal______.
[A] joined the Great Lakes together
[B] crossed New York from north to south
[C] played an important part in developing New York City
[D] was the first waterway built in the US
第6题
A.WOSE单板提供ATMoverE1overSDH承载,每个接口板提供64路E1端口;同时提供8路E1电口,同时支持FractionalATM和CES功能。
B.根据实际应用需要,WLPU板可扣配1~4块W4AM/W4AS光扣板,最多提16路全双工155Mbit/s光接口;此外,在WLPU板也可以配置1~4块W1TM/W1TS光扣板,最多提供4路全双工622Mbit/s光接口。
C.在BSC6800系统的接口板中,WOSE/WOME的电接口仅仅支持E1方式,而WXIE的电接口可以支持E1或T1方式;WXIE板不支持FractionalATM,而只有WOSE/WOME的电口支持FractionalATM。
D.WOSE/WOME板提供的8路E1物理端口不支持IMA功能,因此IMA组的配置只对WOSE/WOME的光口和WXIE板有效。
第7题
A.WOSE单板提供ATMoverE1overSDH承载,每个接口板提供64路E1端口;同时提供8路E1电口,同时支持FractionalATM和CES功能。
B.根据实际应用需要,WLPU板可扣配1~4块W4AM/W4AS光扣板,最多提16路全双工155Mbit/s光接口;此外,在WLPU板也可以配置1~4块W1TM/W1TS光扣板,最多提供4路全双工622Mbit/s光接口。
C.在BSC6800系统的接口板中,WOSE/WOME的电接口仅仅支持E1方式,而WXIE的电接口可以支持E1或T1方式;WXIE板不支持FractionalATM,而只有WOSE/WOME的电口支持FractionalATM。
D.WOSE/WOME板提供的8路E1物理端口不支持IMA功能,因此IMA组的配置只对WOSE/WOME的光口和WXIE板有效。
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!