22．Lawrence Craven, a doctor from the USA，is the author of several published reports, one of______ introduced the idea in 1953 ______aspirin could reduce the risk of heart attacks．
#79598
A
them; when
B
which; that
C
what; that
D
which; when
推荐题目
I developed very slowly and it took nearly two hundred years I was built as an analytical machine by Charles Babbage.
#33100
A
before
B
after
C
long
D
short
This year’s fall in profits was not unexpected ,it is very disappointing.
#79702
A
Otherwise
B
But
C
However
D
Nevertheless
___ ,she is experienced.
#80357
A
As she is young
B
Young as is she
C
Young as she is
D
Though she was young
Newspapers, radios, the Internet can often help to solve problems by _____ attention to situations _____ help is really needed.
#34371
A
taking; which
B
drawing; where
C
paying; that
D
attracting; /