Which best serves as the title for the passage?

Câu hỏi số 728344:

Vận dụng

A. A better robot.

B. Snakes up in space.

C. The latest invention of robots: Unreliable!

D. The demise of the future.Robots are useful for exploring and working in space. In particular, many robots have been sent to explore Mars. Such robots have usually looked like a box with wheels. Though these robots are useful, by their very nature they are unreliable, extremely expensive, and they break easily. Also, they cannot do very many tasks. Because of these problems, scientists have been developing a new and unusual kind of robot. These new robots move like snakes, so they have been given the name “snakebots.”But how can such a robot shape be made? A snakebot is built like a chain made of about thirty parts, or modules. Each module is basically the same in that they all have a small computer and a wheel to aid movement. The large computer in the “head” of the snake makes all of the modules in a snakebot work together. The modular design of the snakebot has many advantages. If one module fails, another can be added easily. Snakebot modules can also carry different kinds of tools, as well as cameras. Since each module is actually a robot in itself, one module can work apart from the rest if necessary. That is, all the modules can separate and move on their own, and then later, reconnect back into a larger robot.Overall, the snakebot design is much simpler than that of common robots. Thus, snakebots will be much less expensive to build. For example, a robot recently sent to Mars cost over a hundred million dollars, whereas snakebots can cost as little as a few hundred dollars. With their versatility and affordability, snakebots seem to be the wave of the future, at least as far as space robots are concerned.(Adapted from Reading Challenge 3 by Casey Malarcher and Andrea Janzen)

Đáp án đúng là: A

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Câu hỏi:728344

Phương pháp giải

Đọc hiểu – ý chính

Giải chi tiết

Tiêu đề nào phù hợp nhất cho đoạn văn?

A. Một robot tốt hơn.

B. Rắn trên không gian.

C. Phát minh mới nhất của robot: Không đáng tin cậy!

D. Sự suy tàn của tương lai.

Đáp án cần chọn là: A

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