From the very beginning, water has
furnished man with a source of food and a highway to travel. The first
civilizations arose {{U}} (76) {{/U}} water was the dominant element in
the environment, a challenge {{U}} (77) {{/U}} man’s ingenuity. The
Egyptians invented the 365-day calendar {{U}} (78) {{/U}} the Nile’s
annual flooding. The Babylonians {{U}} (79) {{/U}} were among the most
famous law-makers in ancient times, invented laws {{U}} (80) {{/U}} water
usage. Water inspired the Chinese to build a 1,000 miles’ canal, a complex
system {{U}} (81) {{/U}}, after 2,500 years, remains particularly in use
and still commands the astonishment of engineers. But the ancients never found
complete A. that B. which C. because D. as
更多"Directions: There are 10 blanks in "的相关试题:
[单项选择] Fill in each of the following blanks with ONE Word to complete the meaning
of the passage.
Predictions of large populations of
robots in industry have yet to come true. For a decade or more, manufacturers of
big robots have explained how their machines can make industry more competitive
and productive. The market for 51 robots is now oversupplied,
and the driving force of the robotics (机器人技术) revolution is 52
to be with makers of machines that handle a few kilos at
most. "Heavy-robot manufacturers are in some difficulty
53 finding customers. They are offering big 54
just to get in the door. There has been a 55 growth
everywhere in the numbers of robots, so we have to admit we are either
deceiving 56 or that the market is slowly growing, "said John
Reekie, Chairman of Colne Robotics. "The following t A. small B. educational C. big D. business
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