题目内容
（请给出正确答案）
For what primary purpose was the Aswan Dam built？
A．Traffic.
B．Irrigation.
C．Electricity.
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
更多“For what primary purpose was the Aswan Dam built？A．Traffic.B．Irrigation.C．Electricity.”相关的问题
A、metaphysics
B、epistemology
C、human and nature
D、ideas and forms
A、Travelling.
B、Attending her friend's wedding ceremony.
C、Studying abroad.
D、Business trip.
A、15cm
B、25cm
C、40cm
D、60cm
A、will work for a big company
B、worked for Otis Elevator
C、a self-employed entrepreneur
D、found a position at TAF
A．Storytelling once stopped in Wales.
B．Storytelling has a long history in Wales.
C．Storytelling is always well received in Wales.
D．Storytelling did not come back until 1993 in Wales.
Roman soldiers in some places built long rows of signal towers. When they had a message to send, the soldiers shouted it from tower to tower. If there were enough towers and enough soldiers with loud voices, important news could be sent quickly over distance.
In Africa, people learned to send messages by beating on a series of large drums (鼓). Each drum was kept within hearing distance of the next one. The drum beats were sent out in a special way that all the drummers understood. Though the messages were simple, they could be sent at great speed for hundreds of miles.
In the eighteenth century, a French engineer found a new way to send short messages. In this way, a person held a flag in each hand and the arms were moved to various positions representing different letters of the alphabet. It was like spelling out words with flags and arms.
Over a long period of time, people sent messages by all these different ways. However, not until the telephone was invented in America in the nineteenth century could people send speech sounds over a great distance in just a few seconds.
According to this passage, the Roman way of communication depended very much upon______.
A．fine weather
B．high tower
C．the spelling system
D．arm movements
A．Birthday cake.
B．Money.
C．Traveling.
警告：系统检测到您的账号存在安全风险
为了保护您的账号安全，请在“简答题”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！
