作为特殊认识过程的教学过程，其简捷性主要是指 ( )A．任务较简单 B．教学进度

某化学兴趣小组为探究SO₂的性质，按下图所示装置进行实验。

请回答下列问题：

（1）装置A中盛放亚硫酸钠的仪器名称是___________，其中发生反应的化学方程式为_____________________________________________；

（2）实验过程中，装置B、C中发生的现象分别是___________、_____________，这些现象分别说明SO₂具有的性质是_________和___________；配平下面离子方程式：

□SO₂＋□＋□H₂O＝□＋□＋□H^＋；

（3）装置D的目的是探究SO₂与品红作用的可逆性，请写出实验操作及现象______________________；

（4）尾气可采用____________________溶液吸收。

患者男，60岁，创伤后5d出现呼吸困难，意识障碍。查体：浅昏迷，呼吸困难，口唇发绀、双肺散在湿啰音，呼吸频率36次/min。

该患者抢救中最需采取的措施是（）

A.开放气道，呼吸机支持治疗

B.大量应用呋塞米

C.纠正心律失常

D.应用血管活性药物

E.抗炎治疗

“斗牛场”属于（）观光农业资源。

A、购物型

B、体验型

C、品赏型

D、娱乐型

Tim Richter and his wife, Linda, had taught for over 30 years near Buffalo, New York—he in computers, she in special education. "Teaching means everything to us", Tim would say. In April 1998, he learned he would need a heart operation. It was the kind of news that leads to some serious thinking about life’s purpose.
Not long after the surgery, Tim saw a brochure describing Imagination Library, a program started by Doily Patron’s foundation (基金会) that mailed a book every month to children from birth to age five in the singer’s home town of Sevier, Tennessee. "I thought, maybe Linda and I could do something like this when we retire," Tim recalls. He placed the brochure on his desk, "as a reminder."
Five years later, now retired and with that brochure still on the desk, Tim clicked on imagination library. The program had been opened up to partners who could take advantage of book and postage discounts.
The quality of the books was of great concern to the Richters. Rather than sign up online, they went to Dollywood for a look-see. "We didn’t want to give the children rubbish," says Linda. The books-reviewed each year by teachers, literacy specialists and Dollywood board members-included classics such as Ezra Jack. Keats’s The Snowy Day and newer books like Anna Dewdney’s Llama series.
Satisfied, the couple set up the Richter Family Foundation and got to work. Since 2004, they have shipped more than 12,200 books to preschoolers in their area. Megan Williams, a mother of four, is more than appreciative "This program introduces us to books I’ve never heard of."
The Richters spend about $400 a month sending hooks to 200 children. "Some people sit there and wait to die," says Tim. "Others get as busy as they can in the time they have left.\

According to the text, Dollly Parton is ______.

A. a well-known surgeon

B. a mother of a four-year-old
C. a singer born in Tennessee
D. a computer programmer

铁路线上的分界点是指（）。

A.车站

B.车站进站信号机

C.车站出站信号机

D.线路所

E.自动闭塞区段的通过信号机