31.   As well as the change in the credit outlook since last year, the agency cited risks associated with the investments in satellite pay television and other ventures.

32.   The researchers said further study was needed to define better the health risks associated with specific levels of nicotine exposure.

n. + associate >>共 372
people 7.52%
cost 5.84%
problem 4.41%
risk 4.15%
most 2.59%
current 2.20%
business 1.43%
issue 1.30%
consumer 0.91%
hazard 0.91%
risk + v. >>共 311
be 64.98%
remain 2.01%
come 1.66%
involve 1.59%
increase 1.42%
associate 1.11%
include 0.94%
lose 0.87%
have 0.80%
seem 0.76%
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