Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 131 to 135.
What is GPS? The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites (131)______ into orbit by the U.S. Department of Defense. GPS was originally (132) ______ for for military applications, but in the 1980s, the government made the system available for civilian use. GPS works in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or setup charges to use GPS. GPS satellites circle the Earth twice a day in a very precise orbit and transmit signal information to Earth. GPS receivers take this information and use triangulation to calculate the user's exact location. Essentially, the GPS receiver compares the time a signal was transmitted by a satellite with the time it was received. (133) ______ tells the GPS receiver how far away the satellite is. Now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map. A GPS receiver must be locked on to the (134) ______ of at least three satellites to calculate a 2D position (latitude and longitude) and track movement. With four or more satellites in view, the receiver can determine the user's 3D position (latitude, longitude and altitude). Once the user's position has been determined, the GPS unit (135) ______, such as speed, track, trip distance, distance to destination, sunrise and sunset time and more.
Trả lời cho các câu 1, 2, 3, 4, 5 dưới đây:
Quảng cáo
Group 2K8 ôn Thi ĐGNL & ĐGTD Miễn Phí
>> 2K8 Chú ý! Lộ Trình Sun 2026 - 3IN1 - 1 lộ trình ôn 3 kì thi (Luyện thi 26+ TN THPT, 90+ ĐGNL HN, 900+ ĐGNL HCM, 70+ ĐGTD - Click xem ngay) tại Tuyensinh247.com.Đầy đủ theo 3 đầu sách, Thầy Cô giáo giỏi, luyện thi theo 3 giai đoạn: Nền tảng lớp 12, Luyện thi chuyên sâu, Luyện đề đủ dạng đáp ứng mọi kì thi.
 |
 |
 |
 |
 |
 |
 |
 |
Hỗ trợ - Hướng dẫn
-
024.7300.7989
-
1800.6947
(Thời gian hỗ trợ từ 7h đến 22h)
Email: lienhe@tuyensinh247.com
