下列哪一作品属于王实甫的作品( )。 A．《救风尘》 B．《窦娥冤》 C．

石墨炉原子法中，选择灰化温度的原则是：在保证被测元素不损失的前提下，尽量选择较高的灰化温度以减少灰化时间。( )

下列各项，不属于不伤害原则真正意义的是（）。

A.培养为患者高度负责的精神

B.保护患者健康和生命的理念

C.消除任何医疗伤害

D.避免使患者受到不应有的医疗伤害

E.正确对待医疗伤害现象

男性患者，32岁，主动脉瓣关闭不全，左室扩大，快步走或上楼梯时感心慌气短，超声心动图示左室射血分数40%，患者的心功能分级应为（）。

A.心功能Ⅰ级

B.心功能Ⅱ级

C.心功能Ⅲ级

D.心功能Ⅳ级

E.无症状心功能不全

对以下关于建筑环境的观点，正确的是( )。

A．建筑物的自然环境不一定完美，可根据建筑的功能和造型主题，对自然环境适当加以改造，达到积极的利用和提炼

B．建筑的自然环境应当充分加以尊重，因此，建筑的造型艺术构思应当基于自然环境景观条件，一草一木都应保护

C．中国传统的“风水”术是渗透了科学内涵的环境景观艺术遗产，在当代建筑外部空间设计中，应当充分遵循“风水”法则

D．现代城市大型公共建筑，特别在市中心土地珍贵的条件下，高密度和高容积率限定了外部环境设计的次要地位，建筑的室内空间成了设计的主要关注点

Some doomsayers are warning that long-range warming or cooling trends in weather patterns will drastically reduce grain production. More optimistic reports, however, point out that, even if such drifts in average temperature do occur, we should expect little change in grain production because there is little evidence that changes in rainfall patterns will occur. Moreover, for most crops, climate-induced yield trends will be masked by both the year-to-year fluctuation of yields and by the enhancement of yields because of technological factors. Which of the following is an assumption on which the more optimistic reports mentioned in the passage are based

A．Long-range changes in weather patterns cannot be accurately predicted.

B．The growing of grain is so highly dependent on technological factors that improvements in yield are unlikely, regardless of climatic conditions.

C．Trends in rainfall patterns are more difficult to isolate than are trends in temperature.

D．Long-range warming or cooling trends are more damaging to grain production if they are accompanied by changes in rainfall patterns than if they are not.

E．(E) Long-range cooling trends are potentially more destructive to grain production than are long-range warming trends.