房地产同时具有经济寿命和自然寿命。 ( )
参考答案：对
He's going to buy a big house when he more money. [ ]
A. is going to have
B. will have
C. have
D. has
家庭治疗三角中，全科医生充当的角色是
A．指导者B．治疗者C．决定者D．命令者E．教育者
