单项选择题

What can we infer from this passage

A．The ancient societies were uncivilized compared to modem ones.
B．Engineers should pay more attention to history.
C．The Egyptian civilization is better than the modem one.
D．The Egyptians carefully utilized their observations.

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单项选择题

According to this passage, the standardized measurements were first used ______.

A．when the steel beam was developed
B．when the Egyptians built the pyramids
C．when scientists wanted to make specific observation
D．when engineers designed microscopic measuring devices

单项选择题

Which is a result of more accurate standards

A．Larger and more complicated engineering projects.
B．Less use of nature.
C．Less ability to work with traditional materials.
D．Simpler tools for designing large projects.