Radium salts，which have been found to ______ in bones，give rise to bone cancer.
#71991
A
pile up
B
build up
C
keep up
D
pull up
推荐题目
--Would you be ___ to help me with my study?---I'll be very glad ___ it.
#80589
A
too kind, doing
B
very kind, doing
C
as kind as, to do
D
so kind as, to do
Washington Square Park, ________ the first president, is one of New York city's most popular and oldest parks, dating back to 1827.
#64277
A
in terms of
B
in favor of
C
in praise of
D
in honor of
If no measures are taken, the special wild plant will ________ some day.
#64213
A
die out
B
die away
C
die down
D
die off
--- Any good way to get there on time ? ---Only by ________.
#74110
A
speeding up
B
turning up
C
taking up
D
putting up
When we visited Hainan again ten years later, we found it changed so much that we could hardly _______ it.
#74495
A
remember
B
think about
C
believe
D
recognize