51.   Alan Brownstein, president of the American Liver Foundation, said little research has been conducted on the question.

52.   British Airways and Virgin Atlantic conducted extensive research in developing their beds.

53.   Brown and other academic scientists understand that companies conduct research with an eye toward the bottom line.

54.   But administrators concede that little research is conducted now.

55.   But generally, scientists, public and private, said Tuesday that they welcomed the moratorium, even though they said they were unaware of anyone conducting such research.

56.   But he said the research was conducted by independent experts, and that analgesics research is routinely paid for by drug manufacturers.

57.   But so are conducting independent research, working in teams, learning from colleagues, and scouring the Internet.

58.   But the lines become blurred over the type of research being conducted by ACT and other bioresearch firms seeking to create human embryos strictly for their stem cells.

59.   But when he conducts research on human cells, he must move to an entirely different laboratory.

60.   Cato argues the research should be conducted by private industry.

v. + research >>共 528
do 17.80%
conduct 11.47%
need 3.27%
fund 3.24%
support 2.98%
carry 2.08%
finance 1.84%
continue 1.84%
begin 1.45%
publish 1.43%
conduct + n. >>共 390
test 8.60%
investigation 5.28%
study 5.02%
business 4.66%
research 4.00%
interview 3.79%
search 3.77%
survey 3.65%
trial 2.33%
experiment 2.18%
每页显示:    共 471