[单选题]以下关于家系图的描写错误的是
A.夫妻当中男左女右
B.长辈在上,子辈在下
C.同辈中,长者在右,幼者在左
D.夫妇双方的家庭都应包含在

When Amber Post started graduate school in physics at Princeton, her goal was the same as her male colleagues’: a teaching post at a major university. Now with her Ph.D. just a year away, Post is thinking instead about working for a policy-marking agency in Washington. Although Princeton, with Shirley Tilghman as the president, is welcoming to female scientists, Post senses that her reception in the larger academic world might be chillier. At famous universities, the percentage of women earning doctor’s degrees in science and engineering is considerably higher than the percent-age of women professors—which means that a lot of talented women Ph.D. s like Post leave campus for jobs in government or industry instead of climbing the teaching ladder.
Stopping this female brain drain has been a challenge for years. At a recent academic conference, Harvard president Lawrence Summers suggested that women aren’t succeeding because they lack ability in math
A. create more academic posts for women
B. offer help to women with young children
C. dismiss those with prejudice against women
D. promote more women to leadership positions