单项选择题
A．there is a link between changes in the seasons and crime patterns B．crime is not linked to the cycle of the weekdays C．there is a sure connection between murder and hot weather D．there is a connection between robbing and murder
A．The police records were collected from a large number of cities and towns. B．The pattern of crime varies from year to year. C．Our cycles of learning are different from those of wrong action. D．The police are not sure that humidity and murder are relate
A．Problems Existing in the American States. B．Working Conditions for VDTs Operators. C．Health Dangers to Workers Using VDTs. D．How to Protect the Pregnant Women.