一根电线，用去35米，用去的比剩下的少14米，这根电线原来有多长？

下列各组物质的名称指的不是同种物质的是（　　）

A．涤纶（的确良）

B．锦纶（尼龙）

C．腈纶（人造羊毛）

D．合成纤维（棉纤维）

患者女，57岁，因“发作性气促10余年，加重2d”来诊。查体：T36.5℃，R36次/min，P130次/min，BP160/100mmHg；急性病容，烦躁，端坐呼吸，口唇发绀；心律齐，双肺叩诊过清音，可闻及大量哮鸣音；腹部无异常；双下肢无水肿。

下列护理、抢救措施中，错误的是（）（提示入院6h后，病情变化，SaO75%，提高面罩吸氧浓度，血氧饱和度不能维持，且出现意识模糊，血压下降至74/44mmHg。）

A.立即建立静脉通道

B.面罩高流量吸氧

C.立即做好气管内插管的准备工作

D.人工气道一旦建立，立即行机械通气

E.补液和应用血管活性药物以维持血压

F.有效镇静以减少氧耗

Long ago, in days of the Roman Empire, people used to believe a god of farmings called “Saturn”. They believed that Saturn could make the weather good or bad, and that he had the power to control how much rain would fall.

Before a Roman farmer would plant his fields, he would try to get Saturn to give him good weather. He believed that if he killed an animal for Saturn, that would make Saturn happy. Then Saturn would make sure that the weather was good.

Not only did the people name a planet after Saturn but they also name a day of the week after him. They called this day “Saturni dies”, Latin words which mean “day of Saturn”. In English those words became Saturday.

6. What was Saturn believed to be in charge of?

A. Rainfall.    B. The power of nature.   C. Farming.    D. Days in a week.

7. Why did a Roman farmer kill an animal before planting his fields?

Because      .

A. killing an animal would bring him good luck

B. Saturn enjoyed eating animals

C. Saturn was happy to see animals being killed

D. he wanted to please Saturn so that Saturn would make the weather good for his planting

8. Which of the following is NOT TRUE?

A. Saturn is also the name of planet.

B. The Roman people used to believe Saturn to be their god.

C. Saturn was named for the last day of the week.

D. Saturn had three meanings.

9. What’s the aim of the author in writing this passage?

A. How the Romans worshipped (崇拜) Saturn.

B. Why the Romans believed in Saturn.

C. The different meanings of the word Saturn.

D. How Saturday got its name.

导游服务是高智能、高技能的服务工作。导游服务技能主要表现在______。

A．抵制诱惑的控制能力

B．导游讲解能力

C．导游规范服务能力

D．特殊问题的处理及应变能力

旋流除砂器和旋流除泥器的结构及工作原理完全相同。