女患者，26岁，因为气喘3小时来诊。现妊娠3个月。过去2年于夏季曾有类似发作史，服氨

Ten years ago, I had worked as a night guard in a factory. On a rainy night, all the lights of factory went out all of a sudden. I rushed out and could see nothing. Lucky for me, the warning system was directly connected with the police station. Three or four minutes late, four police car arrived at the front gate. They searched for the factory carefully, tried to find something unusual. In the end, I am told that the rain had brought about   the short circuit, that caused the accident.

研磨后，零件的（）。

A.耐磨性降低

B.疲劳强度降低

C.使用寿命延长

D.抗腐能力降低

会议简报的报头包括（）。

A.简报名称

B.简报期数

C.编印单位

D.编印日期

（）应当依照规定对运营中的危险化学品、民用爆炸物品、核与放射物品的运输工具通过定位系统实行监控。

某一城市的A开发企业开发一项房地产项目，该项目的现金流量情况如下表。假设开发商要求的基准收益率为10%，请分析回答下列问题：
单位：万元

一个项目在某一特定时期内收入或支出的资金数额称之为( )。

A．现金流量

B．现金流入量

C．净现金流量

D．现金流出量