问题 单项选择题

乙方在招标采购药品时,应优先选择社保药品目录范围内临床疗效好、价格合理的药品,同品种规格的中标药品中选购最高价格和次高价格的药品数量所占比例应不超过()。

A、10%

B、20%

C、30%

D、40%

答案

参考答案:B

填空题

利用元素周期表,我们可以认识更多元素的性质。

(1)根据元素周期表来比较Mg和Cs的金属性,要通过另一种元素作中介或桥梁进行比较, 这种元素是             。(填元素符号)

(2)元素周期表位于对角线的两种元素其性质相似称之为对角线规则。根据周期表对角线规律,金属Be单质及其化合物的性质与铝单质及其化合物的性质相似。

①已知2Al+2NaOH+2H2O=2NaAlO2+3H2↑,写出Be与NaOH溶液反应的离子方程式)                                             

②鉴别Be(OH)2和Mg(OH)2可选用的试剂为               

(3)科学家证实,BeCl2属于共价化合物,设计一个简单实验证明这一点,你想到的可行的方法是                                                            

(4)元素周期表中某一元素具有如下性质:①该元素单质常被用作半导体材料。②其单质与稀盐酸不反应,与氢氧化钠溶液反应可以放出氢气。③其最高价氧化物既可以溶于浓盐酸,也可以溶于氢氧化钠溶液。④其最高价氧化物对应的水化物既可以和酸反应,也可以和碱反应。在与盐酸反应时,1mol这种最高价氧化物对应的水化物最多消耗4mol/ L 的盐酸1L。 请你写出这种元素在周期表中的位置:        

阅读理解

A year ago August, Dave Fuss lost his job driving a truck for a small company in west Michigan. His wife, Gerrie, was still working in the local school cafeteria (自助食堂), but work for Dave was scarce (不足的,缺乏的), and the price of everything was rising. The Fusses were at risk of joining the millions of Americans who have lost their homes in recent years. Then Dave and Gerrie received a timely gift—$7,000,a legacy (遗产) from their neighbors Ish and Arlene Hatch, who died in an accident . “ It really made a difference when we were going under financially, ” says Dave.  

But the Fusses weren’t the only folks in Alto and the neighboring town of Lowell to receive unexpected legacy from the Hatches. Dozens of (许多) other families were touched by the Hatches’ generosity. In some cases, it was a few thousand dollars ; in others, it was more than $100,000.  

It surprised nearly everyone that the Hatches had so much money, more than $3 million—they were an elderly couple who lived in an old house on what was left of the family farm .  

Children of the Great Depression, Ish and Arlene were known for their habit of saving, They thrived on(喜欢)comparison shopping and would routinely go from store to store, checking prices before making a new purchase (购买) .  

Through the years, the Hatches paid for local children to attend summer camp when their parents couldn’t afford it. “Ish and Arlene never asked if you needed anything,” says their friend Sand Van Weelden, “They could see things they could do to make you happier, and they would do them.  

Even more extraordinary was that the Hatches had their farmland distributed (分发;分配). It was the Hatches’ wish that their legacy—a legacy of kindness as much as one of dollars and cents should enrich the whole community(社区)and last for generations to come.

Neighbors helping neighbors ——that was Ish and Arlene Hatch’s story.  

小题1:According go the text, the Fusses ______.

A.were employed by a truck company

B.worked in a school cafeteria

C.were in financial difficulty

D.lost their home 小题2:Which of the following is true of the Hatches?

A.They had their children during the Great Depression

B.They gave away their possessions ( 财产;所有物) to their neighbors

C.They left the family farm to live in an old house

D.They helped their neighbors to find jobs 小题3:Why would the Hatches routinely go from store?

A.They decided to open a store

B.They couldn’t afford expensive things

C.They wanted to save money

D.They wanted to buy gifts for local kids 小题4: According to Sand Van Weelden, the Hatches were ______.

A.curious

B.optimistic

C.childlike

D.understanding小题5:What can we learn from the text?

A.The Hatches would like the neighbors to follow their example

B.The summer camp was attractive to the parents

C.Sandy Van Weelden got a legacy form the Hatches

D.The community of Alto was poor