问题 单项选择题

重铬酸钾法测COD时的催化剂是()。

A.硫酸汞

B.硫酸铜

C.硫酸银

D.硝酸汞

答案

参考答案:C

综合题

中共十七届三中全会通过的《关于推进农村改革发展若干重大问题的决定》指出:农业、农村、农民问题关系党和国家事业发展全局。

阅读下列材料:

材料一 中华人民共和国初期农业生产统计表(金额单位:亿元)

材料二 我国小麦产量超过美国跃居世界第二位了。我国小麦增产速度是古今中外历史上所没有的,更是资本主义国家所望尘莫及的。……美帝国主义者说我们人口多是“不堪重负的压力”,我们要用更多的事实告诉他们,人口多,生产粮食更多。只要我们需要,要生产多少就可以生产多少粮食出来。      ——《人民日报》社论(1958年7月23日)

材料三 农村政策放宽以后,一些适宜搞包产到户的地方搞了包产到户,效果很好,变化很快……有的同志担心,这样搞会不会影响集体经济,我看这种担心是不必要的。

——邓 * * 《关于农村政策问题》(1980年5月31日)

请回答:

(1)根据材料一分析1952~1956年新中国农业发展状况。(1分)这一状况的出现与当时在农村开展的什么活动有关?(1分)

(2)对材料二所反映的我国农业生产情况你是如何判断的?(1分)这种情况的出校与哪两个运动有关?(2分)这两个运动的后果如何?(1分)

(3)材料三中所述的“包产到户”政策最先在哪两个省份实行?(2分)为什么说“这种担心是不必要的”?(1分)

(4)综合上述材料信息,你得到了什么重要启示?(1分)

单项选择题

(三)

Mr. Peter Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when it landed upside down in three feet of water. Mr. Johnson took the only escape route-through the boot.

Mr. Johnson’s car had finished up in a ditch at Romney Marsin, Kent after skidding on ice and hitting a bank. "Fortunately, the water began to come in only slowly," Mr. Johnson said. "I couldn’t force the doors because they were jammed against the walls of the ditch and dared not open the windows because I knew water would come flooding in. "

Mr. Johnson, a sweet salesman of Sitting Home, Kent, first tried to attract the attention of other motorists by sounding the horn and hammering on the roof and boot. Then he began his struggle to escape.

Later he said, "It was really a half penny that saved my life. It was the only coin I had in my pocket and I used it to unscrew the back seat to get into the boot. I hammered desperately with a hammer trying to make someone hear, but no help came. "

It took ten minutes to unscrew the seat, and a further five minutes to clear the sweet samples from the boot. Then Mr. Johnson found a wrench and began to work on the boot lock. Fifteen minutes passed by. "It was the only chance I had. Finally it gave, but as soon as I moved the boot lid, the water and mud poured in. I forced the lid down into the mud and scrambled clear as the car filled up. "

His hands and arms cut and bruised, Mr. Johnson got to Beckett Farm nearby, where he was looked after by the farmer’s wife, Mrs. Lucy Bates. Huddled in a blanket, he said, "That thirty minutes seemed like hours. " Only the tips of the car wheels were visible, police said last night. The vehicle had sunk into two feet of mud at the bottom of the ditch.

What is the best title for this newspaper article()

A.The Story of Mr. Johnson, A Sweet Salesman

B.Car Boot Can Serve As The Best Escape Route

C.Driver Escapes Through Car Boot

D.The Driver Survived A Terrible Car Accident