The concept of 'digital twins' has evolved from a niche engineering tool into a cornerstone of modern infrastructure management. A digital twin is a virtual replica of a physical asset, system, or process, continuously updated with real-time data from sensors and IoT devices. This dynamic model allows engineers and urban planners to simulate scenarios, predict failures, and optimize performance without disrupting real-world operations. For instance, in smart city initiatives, digital twins of transportation networks can model traffic flow under various conditions, enabling proactive adjustments that reduce congestion and emissions. However, the reliance on massive data streams raises concerns about cybersecurity and data privacy. Moreover, the accuracy of a digital twin is only as good as the data feeding it; incomplete or biased data can lead to flawed simulations, undermining the very benefits it promises. Thus, while digital twins offer unprecedented opportunities for efficiency, they also demand robust governance frameworks to ensure reliability and ethical use.
❓ 지문에 따르면, 디지털 트윈의 중요한 한계는 무엇인가?
A. A. 그들은 대부분의 도시 프로젝트에 비용이 너무 많이 든다.
B. B. 그들의 예측 정확성은 입력 데이터의 품질에 달려 있다.
C. C. 그들은 실시간 교통 상황을 시뮬레이션할 수 없습니다.
D. D. 그들은 물리적 인프라 유지보수의 필요성을 제거한다.
✅ 正确答案
B. Their predictive accuracy depends on the quality of input data.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
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