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

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.

单项选择题

According to this passage, which is not used for determining the load of a steel beam

A．Microscopic measuring devices.
B．Machines that create large amounts of stress.
C．Machines that can measure force.
D．Analysis of the weight of the beam.