题目内容：
To get a sense of bow women have progressed in science, take a quick tour of the physics department at the University of California, Berkeley. This is a storied place, the46 of someof the most important discoveries in modern science-starting with Ernest Lawrence s invention ofthe cyclotron(~j~ll~-~) in 1931. A generation ago, female faces were47 and, even today, visitors walking through the first floor of LeConte Hall will see a full corridor of exhibits
~ the many distinguished physicists who made history here, 49 all of them whitemales.50 display. There, among the photos
But climb up to the third floor and you' 11 see a are portraits of the 51_______head of the department,of current faculty members and students,whose research 52 everything from the mechanicsMarjorie Shapiro, and four other womenof the universe to the smallest particles of matter. A sixth woman was hired just two weeks ago.Although they' re still only about 10 percent of the physics faculty, women are clearly a presencehere. And the real 53 may be in the smaller photos to the right: graduate and undergraduate students, about 9~0 percent of them female. Every year Berkeley sends its fresh female physicsPhDs to the country' s top universities. That makes Shapiro optimistic, but also 54 . "I believe things are getting better," she says, "but they' re not getting better as to55____-- as I wouldlike. "
根据以上内容，回答题．
第46题答案是 ____ A．circumstance
B．confidence
C．covers
D．current
E．deals
F．different
G．exposing
H．fast
I．honoring
J．hope
K．presently
L．rare
M．realistic
N．site
O．virtually
参考答案：
答案解析：