枕骨骨折的最佳摄影位置是（）

[判断题]心包前下窦是心包穿刺比较安全的部位。

[单选题]甲房地产经纪公司为了避免赵某、钱某私下成交，应当（　　）。

[名词解释题]指导—自学教学

[填空题]反馈在操作技能的学习过程中的作用非常关键，其中____的作用尤为明显。

[单选题]支持安乐死的的理由不包括（）

[单选题]请阅读 Passage 1，完成第 21~25小题。Passage 1These days，many large city buildings are equipped with their own air-conditioning systems.These systems help keep the buildings cool，but they can also damage the environment.Since they use a lot of electricity，for instance，they contribute indirectly to global warming.In addition，the water that flows through the systems is often cooled using chemicals called chlorofluorocarbons，or CFCs，that are believed to damage the Earth's ozone layer.Recently，though，a system has been built in the city of Toronto，Canada，that cools buildings with little damage to the environment. In the traditional air-conditioning systems found in most large buildings，water is pumped through the building in a continuous cycle.The water is first cooled to a temperature of 4℃ in machines called chillers.It is then sent to individual units that cool the air in each room.As the water flows through the building，it gradually becomes warmer.Finally，it reaches the roof ，where it is left to cool down naturally in a water tower.After that it is returned to the chillers，where the cycle begins again.Toronto lies on the shore of Lake Ontario，one of North America's Great Lakes，and the new system makes use of cold water taken from about 80 meters below the surface of the lake.At this depth，the water in the lake remains at 4℃ all year round.This is exactly the temperature to which the water in air-conditioning systems is cooled.However，the water from the lake is not pumped directly into the air-conditioning systems.Instead，it is used to cool the water that is already inside the air-conditioning systems.After that，the lake water is added to the city's ordinary water supply.Enwave，the company that developed this deep-lake cooling system，says that it uses 75 percent less energy than traditional air conditioning.And since no CFCs are used，no damage can be caused to the ozone layer.Not every city is located next to a large lake，but experts believe that systems like the one being used in Toronto could be built elsewhere by using other natural sources of cold water.What is the function of the chillers in a traditional air-conditioning system?

[单选题]基于被测参数的变化引起敏感元件的电阻变化，从而检测出被测参数值是一种常用的检测手段，以下测量仪器中不属于此种方法的是（　　）。[2007年真题]

[多选题]土地勘测定界权属来源调查的主要内容有（）。

[单选题]老张3年前买人当年发行的某企业债券，期限20年，面值1000元，每半年付息一次，票面利率6．22％。若该债券目前市价为1585元，则老张持有的该债券到期收益率为（）

[问答题]景观出入口主体建筑达到什么效果？