We________on this project for four hours.Let's have a rest.

A．are working

B．have been working

C．worked

D．had worked

接受糖皮质激素治疗的病人，一般不必定期检查

A．血糖

B．眼睛

C．肾功能

D．大便隐

E．小儿生长和发育情况