患者，男。鼻流白粘涕2年。无臭味，伴鼻塞，嗅觉减退，头重头昏，自汗恶风，气短无力，咳

I often quarrel about my mother over whether I can watch TV after school. She holds view that senior three students have to make fully use of every minute to work hard at their lessons. It seems to me that once I am allowed to do that, I’ll unable to control myself and forget all about my study. She also thinks it is bad for my eye. But I really can’t accept her ideas. In my opinion, watch TV can set my mind at rest after a day’s hard works. Besides, it is important for us to know what had happened both at home and at abroad. Thus, we shouldn’t be forbidden to watch TV.

下列情况中，属于自身调节的是

A．人在过度通气后呼吸暂停

B．动脉血压维持相对恒定

C．体温维持相对恒定

D．血糖水平维持相对恒定

E．平均血压在一定范围内升降时，肾血流量维持相对恒定

读甲、乙、丙、丁四地三种生产要素费用示意图，某企业集团经过对四地考察后，决定在丁地兴办一家公司，该公司最有可能是

A．钢铁联合公司

B．医药研发公司

C．食品加工公司

D．油漆化工公司

日本血吸虫病理改变的特征是（）

A.虫卵沉积于门静脉血管壁

B.脾功能亢进

C.干酪样坏死

D.虫卵肉芽肿反应

E.肝纤维组织增生

同一建设工程由于建造地点不同或由不同的承包商承建，其风险也不同，这突出体现了风险具有( )。

A．个别性

B．主观性

C．复杂性

D．不确定性