What is a cause for the change of Stefania’s body clock?

A．Eating fewer hours of sleep.

B．Having more hours of sleep

C．Lacking physical exercise.

D．Getting no natural light.

[单选题]What is a cause for the change of Stefania’s body clock?A． Eating fewer meals.B． Having more hours of sleep.C． Lacking physical exercise.D． Getting no natural light.

[单选题]what might be the cause if the children’s sickness?A． the crops didin’t dowellB．there were too many insectsC．the visits brought in diseasesD．the pesticides were overused

[单选题]What’s the cause of the crosswalk safety problem according to the test?A． There’re many cars and buses on the road.B． Pedestrians are careless.C． Crosswalks are crowded.D． Drivers don’t give way.

[单选题]What might be the cause of the children’s sickness?A． The crops didn’t do well.B． There were too many insects.C． The visitors brought in diseases.D． The pesticides were overused.

[单选题]What can cause the disasters of gap years?［A］ Intervention of parents. ［B］ Careful planning. ［C］ Good health. ［D］ Realistic expectation.

[单选题]Which of the following would be least likely to cause a change in investing

[问答题]What did I say to cause you to do that?.

[试题](b) What styles of managing change would you recommend John use to bring about the desired change?(8 marks)

[单选题]What could a MS do when its state changes from idle to ready？（）A . Power onB . PDP context activationC . GPRS attachD . Transferring packets

[单选题]Stefan-Boltzmann定律表明：对于一个黑体，（）。A . 所发射的最大辐射波长随温度的升高而增大B . 所发射的最大辐射波长随温度的升高而减小C . 其辐射出射度随温度升高而增大D . 其辐射出射度随温度升高而减小E . 辐射通量密度随着你和辐射源距离的增大而减小