单项选择题
Crime has its own cycles(周期) ,a magazine reported some years ago. Police records that were studied for five years from over 2400 cities and towns show a surprising link between changes in the season and crime patterns. The pattern of crime has varied very little over a long period of years. Murder reaches its high during July and August as do other violent attacks. Murder, moreover is more than seasonal; it is a weekend crime. It is also a nighttime critne:62 percent of murders are committed between 6 p. m. and 6 a. m.
Unlike the summer high in crimes of bodily harm, robbing has a different cycle. You are most likely to be robbed between 6 p. m. and 2 a. m. on a Saturday night in December, January, or February. The month with least crimes of all May-except for one strange fact. More dog bites are reported in this month than in any other month of the year. Apparently our seasonal cycles of knowledge are completely different from our tendencies for crimes. Professor Huntington made extensive studies to discover the season, when people read serious books, attend scientific meetings and get highest results on examinations. In all cases, he found a spring high and an autumn high separated by a summer low.
Possibly, high temperature and high humidity (温度)cause our strange and violent summer actions, but police officials are not sure. "There is, of course, no proof of a connection between humidity and murder," they say. "Why murder's high time should come in the summer time we really don't know."
A．One is most likely to be murdered on Thursday.
B．Police officials believe in the results of the studies deeply.
C．It is very possible that robbery happens at 4 a. m. every day.
D．The studies show that high humidity is one of the reasons for high rate of crimes.