31.   They said that no mechanical failure could explain the behavior of the elevators during and after the split.

v. + behavior >>共 408
change 10.03%
affect 2.75%
exhibit 2.37%
influence 2.26%
control 2.15%
encourage 1.98%
explain 1.71%
alter 1.60%
study 1.54%
cause 1.27%
explain + n. >>共 1380
decision 3.64%
reason 3.51%
difference 2.29%
action 2.25%
situation 1.97%
position 1.75%
discrepancy 1.29%
problem 1.25%
thing 1.14%
phenomenon 1.02%
behavior 0.52%
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