There’s no way of knowing why one man makes an important discovery ___ another man, also intelligent, fails.
#11912
A
since
B
if
C
as
D
while
推荐题目
 I don’t think your lecture ________ the audience, for they appeared quite puzzled. 
#13153
A
got across to
B
got around to
C
got away from
D
got along with
______of the people on the Net _____ WenZhou will recover from the loan crisis(借贷危机) in time.
#14153
A
Four­fifth;believes   
B
Four­fifth;believe
C
Four­fifths;believe   
D
Four­fifths;believes