a. + threat >>共 500
serious 5.58%
terrorist 4.61%
potential 3.55%
new 3.00%
biggest 2.94%
military 2.74%
immediate 2.39%
real 2.28%
greatest 2.24%
major 1.93%
specific 1.69%
specific + n. >>共 995
plan 1.90%
date 1.79%
area 1.55%
figure 1.54%
target 1.45%
proposal 1.44%
issue 1.41%
case 1.34%
number 1.33%
detail 1.26%
threat 1.18%
每页显示:    共 171