Red, yellow, and green lights represent the state of each supply level.
红色，黄色和绿色亮点表示每个供应点的不同状态。
2
The memory state of each byte of memory is represented by one of these letters R, Y, G, or B. These letters correspond to the colors red, yellow, green, and blue, respectively.
What kind of yellow fever vaccines are valid under the IHR (2005) and must they be administered at a vaccination centre designated by the State or at a listed WHO-approved vaccination centre?