美国Boston Vincent纪念医院妇产科医师Herbst注意到:于1966—1969年间该院诊断了7例年轻女性
A.现况研究
B.生态学研究
C.队列研究
D.病例对照研究
E.实验研究
A.现况研究
B.生态学研究
C.队列研究
D.病例对照研究
E.实验研究
A.病例对照研究适合于人群中暴露比例很低的因素的研究
B.病例对照研究适合于罕见病的研究
C.队列研究适合于罕见病的研究
D.实验研究提高了研究效率
E.现况研究可证实病因线索
The above page can most probably be read______.
A.on the Boston College website
B.in the Boston College newspaper
C.on BC Eagle One Card
D.at Student Services
The information above is particularly useful for those______.
A.who want to apply for Boston College
B.who want to know about Boston College
C.who've been admitted to Boston College
D.who've decided to pay a visit to Boston College
A.that it true
B.it true that
C.it that true
D.that true it
______in 1635, the Boston Latin School is the oldest public school in the U.S.
A.Founded
B.Founding
C.To found
D.Having founded
A.New York
B.Beijing
C.Boston
D.Chicago
Researchers at Womens Hospital in Boston will______.
A.make a follow-up study of the same 37 subjects
B.spend more money making flavanol drinks
C.take more time to test Small"s results
D.do similar experiments on a larger scale
—I drove from New York yesterday. —What time ______ Boston?
A.did you reach
B.have you reached
C.you reached
D.you have reached
A.in case
B.unless
C.until
D.so that
According to the passage, which of the following is NOT TRUE?
A.The Boston Tea Party took place in 177
B.Europeans figured out ways to use coffee during the 1670s.
C.During the 1770s, more and more Americans began to drink coffee.
D.Coffee is a refreshing drink.