架线轨道与不会电轨道之间可以没有轨道绝缘夹板。

某慢性支气管炎、阻塞性肺气肿患者，3天来咳嗽、气促加重，皮肤潮红、湿暖，口唇发绀，球结膜充血水肿，该患者的氧疗应给予（）。

A.持续高流量给氧

B.间歇高流量给氧

C.持续低流量给氧

D.间歇低流量给氧

E.乙醇湿化给氧

治疗脑外伤后合并肺部感染最重要的是（）

A.翻身、拍背

B.通气、吸氧

C.及时行气管切开

D.用广谱抗生素

E.防治急性肺水肿

阅读下面短文，从短文后各题所给的四个选项（A、B、C 和 D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

                                    A Heroic Driver

Larry works with Transport Drivers. Inc. One morning in 2009. Larry was  41

along 165 north after delivering to one of his    42   . suddenly, he saw a car with its bright lights on.    43    he got closer, he found 44    vehicle upside down on the road. One more look and he noticed    45    shooting out from under the    46    vehicle. Larry pulled over, set the brake and    47   the fire extinguisher (灭火器). Two good bursts from the extinguisher and the fire was put out.

The man who had his bright lights on    48    and told Larry he had    49    an emergency call. They    50    heard a woman’s voice coming from the wrecked (毁坏的) vehicle.    51   the vehicle, they saw that a woman was trying to get out of the broken window. They told her to stay    52    until the emergency personnel arrived,    53    she thought the car was going to    54   . Larry told her that he had already put out the fire and she should not move    55    she injured her neck.

Once fire and emergency people arrive, Larry and the other man    56    and let them go to work. Then, Larry asked the    57    if he was needed or    58    to go. They let him and the other man go.

One thing is    59   —Larry went above and beyond the call of duty by getting so close to the burning vehicle! His    60    most likely saved the woman’s life.

59（）

A.for certain

B.for consideration

C.reported

D.checked

某生产氯气的工厂，由于管道溢漏，致使当地主导风向下风侧居民出现头痛、头昏、恶心、呕吐等症状，此种现象应判断为（）

A.排放事故

B.大气污染事件

C.急性中毒

D.职业病

E.中毒危害