下列化学反应式错误的是 A．钢铁腐蚀时可能发生的反应(正极)：2H2O+O2+4

缺词填空。

     Peter is a teacher in a middle school in Shanghai. He (1)t_______ English. He is (2)f_______ America. His

parents aren't in China. They (3)a_______ in America.

     Shanghai is very nice and Peter likes it very (4)m_______His school is very nice, (5)t_______. The other

teachers and the students are (6)a_______ very friendly. On Sundays Peter often (7)g_______ to the parks

with some Chinese friends. Peter can (8)s_______ much Chinese. He often (9)t_______ with Chinese people.

He is very (10)h_______ in China.

如果你想在事业上成功，就必须有闯劲。 (aggressive)

试析财务评价与国民经济评价的关系。

若行放疗，最可能出现的并发症为：

A．放射性 * * 炎

B．放射性直肠炎

C．膀胱 * * 瘘

D．腹股沟区肿物疗效差

E．因放疗引起外阴皮肤严重损伤

切换辐射泵时，要注意（）的流量。

A、辐射渣油

B、对流渣油

C、注水

D、燃料气