(2014·长春市第一次调研)According to the arrangement，the athletes of our school________at the gym for two hours every day.

A．work out

B．carry out

C．take in　

D．set aside

起管柱时，超载提升是卡钻的报警信号，什么井控问题与超载提升有关？（）

A.激动

B.抽吸

C.有碳氢化合物

D.自喷井