▲閱讀下文，回答第 36−40 題Modern technologies have benefited people’s everyday life. Governments around the world focus on making their cities “ smarter ”; 36 , they use energy-saving technologies to improve the urban environment. The AirBox is an invention under the concept of a smart city. Many Taiwanese people are 37 concerned about air pollution so that they eagerly look for solutions.In 2016, Taipei placed AirBox air quality monitors at 150 of the city’s elementary schools to record fine particulate matter (also known as PM2.5), temperature and humidity. Then, the Academia Sinica (中研院) and Location Aware Sensing System (環境感測器網路 系統 ) analyze the data collected and make the results available 38 the public via the AirBox app and the Internet. Together with environmental organizations, many people use thistechnology to 39 the quality of air so that they may take necessary action. With cities and counties all over Taiwan 40 interest, more than 2,000 units of AirBox are distributed across the island. Taiwan is thus equipped with the world’s densest national network of PM2.5 monitors.
36.
(A) at last
(B) in the following
(C) that is
(D) on the contrary