【简答题】B Henrietta Swan Leavitt was born on July 4, 1869, in Massachusetts. Little is known about her private life. As a college student, she studied a number of subjects and fell in love with astronomy. Lea...
【简答题】US student Vanessa Tahay stands out from the other agers in her school.Her skin is dark and her accent is thick. If you ask her, she will tell you these are the things she is proudest of. Tahay is...