21.   Scientists are divided on the causes of diabetes.

v. + scientist >>共 331
say 9.35%
include 4.78%
have 2.61%
divide 2.28%
intrigue 1.96%
baffle 1.74%
lead 1.30%
leave 1.30%
take 1.20%
bring 1.09%
divide + n. >>共 1107
country 5.25%
time 4.99%
analyst 2.25%
opinion 1.97%
city 1.93%
expert 1.76%
money 1.66%
nation 1.61%
party 1.61%
people 1.40%
scientist 0.40%
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