2006年8月25曰,一辆装载大量浓烧碱溶液的槽罐车在我省韩城市薛峰水库上游坠桥

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问题:

2006年8月25曰,一辆装载大量浓烧碱溶液的槽罐车在我省韩城市薛峰水库上游坠桥,部分烧碱泄入河道.有关部门迅速向被污染的水域内加入稀盐酸,进行了科学合理的处置.

(1)事故处理过程中发生反应的化学方程式为______,该反应属于______反应.

(2)处理过程中要不断地检测河水的pH,你所知道的测定溶液pH的操作方法是______处理后,作为饮用水源,河水中生成的盐无需从水中分离出来,原因是______.

考点:中和反应及在实际中的应用化学反应方程式的书写文字表达式酸碱指示剂
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已知直线l1:4x-3y+6 =0 和直线l2:x=-1,抛物线y2=4x 上一动点P 到直线l1 和直线l2 的距离之和的最小值是(    )。

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下列物质属于纯净物的是(  )

A.漂白粉

B.大理石

C.液氯

D.盐酸

题型:问答题

阅读理解。

     Here is some information about several famous local bakeries(面包房) in Indiana, the US. They

serve as a social gathering place for locals.

     Maple Lane Bakery

     At 8260 S. State Rd. Claypool, IN. (574) 566-2917, it offers a variety of cooked pies, cookies,

and bread. With 20 years' experience Maple Lane Bakery has specialized in the making of pies. The

menu includes peach pie $7.19, berry pie $7.70, apple pie $7.19 and banana pie $6.99.Feel free

to place an order at least 24 hours in advance.

     Betty's Cakes £ Candy Shop

     At 816 E. Winona Avenue Warsaw, IN. (574)269-1231, it specializes in cakes and offers cookies

and candies. The chocolate cookies are sold at $8.99 a dozen. Betty's Cakes £ Candy Shop, started

half a century ago, specializes in wedding cakes and birthday cakes. Buying a cake from Betty's will not

disappoint you as they are always excellent.

     Crepes' Quality Bakery

    At 217 S. Cavin Street Ligonier, IN.( 260) 894-3024, this third generation bakery is located

downtown Ligonier. It offers cookies and cupcakes, and specializes in rolls and bread. If you plan to

buy cookies for the office or work area, you had better get there early as the building workers arrive

just before 5:00 am waiting for the doors to open.

     Olympia Candy Kitchen

     At 136 N. Main Street Goshen, IN. (574)533-5040, it has been welcoming visitors for almost a

century in its unchanged location in downtown Goshen, Indiana. Its tradition began in 1912 when Greek

Nicholas began making his own chocolates. Today this family-owned operation offers all kinds of

candies and boxed candies.

     If you need an order, you should call ahead of time to see if they can meet your request.

1. Which of the following pies is the most expensive?

A. Peach pie.      

B. Banana pie.    

C. Apple pie.      

D. Berry pie.

2. If you want to order a birthday cake, you are advised to call       .

A. (574)533-5040              

B. (574)269-1231  

C. (260) 894-3024              

D. (574) 566-2917

3. Which of the following bakeries has the shortest history?

A. Crepes' Quality Bakery.        

B. Betty's Cakes £ Candy Shop.

C. Olympia Candy Kitchen.      

D. Maple Lane Bakery.

4. The author wrote this passage mainly to      .

A. tell readers some travel information

B. persuade more people to eat pies

C. make the bakeries better known to readers

D. warn customers to order bakeries in advance

题型:问答题

男婴,1岁,已确诊为"营养性缺铁性贫血",遂用铁剂正规治疗。下列哪项最符合铁剂治疗的一般规律?()

A.服铁剂后,网织红细胞数1~2d升高、3~4d达高峰、7~10d下降至正常;血红蛋白10d增加

B.服铁剂后,网织红细胞数3~4d升高、7~10d达高峰、2~3周下降至正常;血红蛋白2~3周增加

C.服铁剂后,网织红细胞数7~10d升高、2~3周达高峰、1~2月下降至正常;血红蛋白1~2月增加

D.服铁剂后,网织红细胞数4~7d升高、10~14d达高峰、1~2月下降至正常;血红蛋白2~3周增加

E.服铁剂后,网织红细胞数2~3周升高、1~2月达高峰、2~3月下降至正常;血红蛋白3~4月增加

题型:问答题

It seems that Shanghai is more more important than ()cities in China at that time.

A.each other

B.one another

C.any other

D.any

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