BY MEASURING THE COLOR OF A STAR, ASTRONOMERS CAN TELL HOW HOT IS IT...

câu 56: - DE THI THU DAI HOC MON TIENG ANH VA DAP AN
Tiếng Anh DE THI THU DAI HOC MON TIENG ANH VA DAP AN
Câu 56: By measuring the color of a star, astronomers can tell how hot is it. A B C D