問題詳情

Questions 49~50     The ancient Egyptians are believed to have used a system of surveying theland that was developed through observation of the stars and the changing of theseasons. By watching the movements of the stars and attempting to set a standardthat would roughly comply to that which they had observed, the Egyptians wereable to construct massive monuments of surprisingly accurate proportions. TheGreat Pyramids of Ghiza are but one example of this application of standardsderived from astronomical observations. Unfortunately, many records of that timehave disappeared over the ages, so it is difficult for us to know exactly how theymade their measurements. It is, nonetheless, obvious that by relying on thestandards that they observed in nature, the Egyptians were able to build long-lastingquality architectural monuments.      The same principle of developing standards through careful observation isessential for modern engineers. For example, to determine the standard load a steelbeam can support, it is necessary to identify the composition of the metal in thebeam. Such observations are only possible with the aid of microscopic measuringdevices. Once a standard has been established for the composition of the beam,further experimentation is performed to find the maximum stress the beam canwithstand. Again, such tests are only possible through the development ofmachinery that can deliver measurable quantities of force. Skyscrapers and largebridges, just like the pyramids of ancient Egypt, can only be built after elaboratesets of standards have been developed.
49. What is the main idea of this passage?
(A) Measurements are important for large projects.
(B) Standards are necessary for order.
(C) Standards are essential for technological development.
(D) Technology has improved in modern times.

參考答案

答案：C
難度：適中0.654545
統計：A(13),B(3),C(36),D(0),E(0)

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