释放药物的IUD是（）A.带铜IUD B.元宫环 C.曼月乐 D.金属单环 E.吉妮

Astute service providers realize that the continued support of legacy X.25 and asynchronous network element using separate operations network is cost（1）. For example,the maintenance of multiple networks can require additional staff.often,this staff must be trained on multiple vendor technologies,sometimes requiring parallel groups specializing in each（2）hence,additional maintenance procedures must be maintained and administrative records are（3）the duplication of trasport facilities to carry（4）network traffic is an inefficient use of resources and,not surprisingly,more technologies installed in a central office mean the necessity for more physical space,and an increase in power connections and power consumption.migration of these（5）network elements to IP-based DCns is alogical strategy

1（）

A.prohibitive 

B.feasible 

C.connective 

D.special

（18分）已知：

I．冠心平F是降血脂、降胆固醇的药物，它的一条合成路线如下：

（1）A为饱和一元羧酸，8.8g A与足量NaHCO₃溶液反应生成2.24L CO₂（标准状况），A的分子式为___________________。

（2）写出符合A分子式的所有甲酸酯的结构简式： ______________________________。

（3）B是氯代羧酸，其核磁共振氢谱有两个峰，写出B→C的反应方程式：

__________________________________________________________。

（4）C+E→F的反应类型为________________________。

（5）写出A和F的结构简式：A______________________； F__________________________。

（6）D的苯环上有两种氢，它所含官能团的名称为___________________；写出a、b所代表的试剂：a ______________; b___________。

Ⅱ. 按如下路线，由C可合成高聚物H：

（7）CG的反应类型为_____________________.

（8）写出GH的反应方程式：_______________________。

About ten years ago, a young and very successful businessman named Josh was traveling down a Chicago neighborhood street. He was going a bit too fast in his shiny, black, 12 cylinder Jaguar XKE, which was only two months old.

He was watching for kids rushing out from between parked cars and slowed down when he thought he saw something. As his car passed, no child came out, but a brick sailed out and — WHUMP! — it hit the Jag’s shiny black side door! SCREECH...!!!! Immediately Josh stopped the car, jumped out, seized the kid and pushed him up against a parked car. He shouted at the kid, "What was that all about and who are you? Just what the heck are you doing?!" Building up a head of steam, he went on. " That’s my new Jag, that brick you threw is gonna cost you a lot of money. Why did you throw it?" "Please, mister, please....I’m sorry! I didn’t know what else to do!" begged the youngster. "I threw the brick because no one else would stop!" tears were streaming down the boy’s face as he pointed around the parked car. "It’s my brother, mister," he said. "He rolled of the curb (路沿) and fell out of his wheelchair and I can’t lift him up. "Sobbing, the boy asked the businessman," Would you please help me get him back into his wheelchair? He’s hurt and he’s too heavy for me.

Moved beyond words, the young businessman tried hard to swallow the rapidly swelling lump in his throat. Straining, he lifted the young man back into the wheelchair and took out his handkerchief and wiped the scrapers and cuts, checking to see that everything was going to be OK. He then watched the younger brother push him down the sidewalk toward their home.

It was a long walk back to the black, shining 12 cylinder Jaguar XKE — a long and slow walk. Josh never did fix the side door of his Jaguar. He kept the dent (凹痕) to remind him not to go through life so fast that someone has to throw a brick at him to get his attention. Feel for the bricks of life coming at you.

1. The boy threw a brick at the businessman’s car because ________.

A. the businessman drove at a high speed  B. he envied the brand-new car very much

C. he wanted to ask for some money      D. he wanted to get help from the driver

2. Which of the following is the right order of the story?

a. The younger brother threw a brick at Josh’s car.

b. The elder brother fell out of his wheelchair.

c. The younger brother begged Josh for help.

d. Josh lifted the elder brother back into his wheelchair.

e. Josh shouted at the younger brother.

A. b, a, e, c, d        B. a, c, d, b, e       C. b, a, c, e, d    D. a, c, b, e, d

3. What can we learn from the passage?

A. Josh would accept the money from the kids.  B. The two kids were Josh’s neighbors.

C. Josh was a kind-hearted man.              D. Josh’s new car broke down easily.

4. According to the passage, the last sentence means ________.

A. trying to get ready for the trouble in your future life

B. driving fast in a neighborhood street is dangerous

C. trying to be more understanding seeing others in trouble

D. protecting oneself from being hurt

利多卡因对哪种心律失常无效（）

A.心室颤动

B.室性期前收缩

C.室上性心动过速

D.强心苷引起的室性心律失常

E.心肌梗死所致的室性早搏

用来分析质量波动究竟由正常原因引起还是由异常原因引起，从而判断生产过程是否处于受控状态的质量控制工具是（）

A.排列图

B.因果分析图

C.控制图

D.散布图