The word “they” in paragraph 2 refers to _______.
Giải bởi Vietjack
Đáp án B
Từ “they” trong đoạn 2 đề cập đến _________.
A. môi trường
B. hệ sinh thái
C. dịch vụ
D. sáng kiến
=> Từ “they” ở đây dùng để thay thế cho danh từ hệ sinh thái được nhắc tới trước đó.
Central to the functioning of most ‘normal’ city ecosystems is the underlying data they run on.
(Trọng tâm chức năng của hầu hết các hệ sinh thái thành phố bình thường là dữ liệu cơ bản mà chúng sử dụng để hoạt động.)
According to paragraph 2, what is the matter that the author want to emphasise?
In the future, maybe all cars that run on petrol will be replaced by solar cars, which have been around for a while, but with recent (1)__________ in solar car design and the measurement of photovoltaic cells becoming smaller, the dream of a truly efficient solar car is more reality than fantasy.
According to paragraph 1, which statement is correct about the current situation for smart cities?
Being stuck in traffic jams could become a thing of the past, as driverless cars will be able to drive at speed (4) ___________ to each other.
Many cars can already park themselves on the roadside, brake automatically when the car needs to slow down, and warn the driver (2) __________ they are slipping out of the right lane, so going driverless is just the next step towards automated driving.
The phrase “hide our heads in the sand” in the passage probably means ______.
The word “obsolete” in the first paragraph is closet in meaning to ______.
According to the writer of the passage, people should right now ______
