33. According to this article, what can Arad’s products detect?
(A) Which water resources are valuable.
(B) Whether water is polluted.
(C) Whether water is being wasted.
(D) What contributes to the turbidity of water.

(C) Whether water is being wasted.關於「水是否被浪費」的問題

That such an idea would come out of Israel is no coincidence. The country is poor in water and rich in tech innovation. Israel pioneered the use of unmanned aerial vehicles after it lost many fighter jets in the 1973 war. But Arad’s drones don’t fight. They read data from the company’s patented water-meter system to detect leakage in irrigation systems to prevent drought.

這樣的想法來自以色列並非偶然。這個國家水的資源貧乏，但在科技創新方面的資源非常豐富。以色列在1973年戰爭中損失了許多戰鬥機後，開發無人機。然而，Arad’s公司的無人機不是用來作戰。它們利用公司專利的水表系統讀取數據，檢測灌溉系統的漏水，防止乾旱。