对原有沥青路面所测定的弯沉值，以15℃为标准温度。

已知y关于x的二次函数y=-2x²+（k-2）x+6，当x≥1时，y随着x的增大而减小，当x≤1时，y随着x的增大而增大．

（1）求k的值；

（2）求出这个函数的最大值或最小值，并说出取得最大值或最小值时相应的自变量的值；

（3）写出当y＞0时相应的x的取值范围．

Discover

Newsmagazine of science, devoted to the wonders and stories of modern science, is written for the educated general reader. Published(出版) by Disney Magazine Publishing Co., Discover tells many of the same stories professionals(专业人员) read in Scientific American. A truly delightful family science magazine, each issue(每期) brings to light new and newsworthy topics to make dinnertime and water-cooler conversations interesting.

Cover Price: $59.88

Price: $19.95($1.66/issue)

You Save: $39.93(67%)

Issues: 12 issues/12 months

Self

Published by Conde Nast Publications Inc., Self is a handbook devoted to women’s overall physical and mental health. Every issue contains usable articles such as “Style Lab”, in which wearable clothes are mixed and matched on non-models and the “Eat-right Road Map”, with tips on how to eat properly.

Cover Price: $35.86

Price: $15．00($2.5/issue)

You Save: $20．86(58%)

Issues: 10 issues/12 months

Instyle

Instyle is a guide to the lives and lifestyles of the world’s famous people. The magazine covers the choices people make about their homes, their clothes and their free time activities. With photos and articles, it opens the door to these people’s homes, families, parties and weddings, offering ideas about beauty, fitness and in general, lifestyles. Publisher: The Time Inc．Magazine Company.

Cover Price: $47.88

Price: $23.88($2.38/issue)

You Save: $24.00(50%)

Issues: 10 issues/12 months

Wired

This magazine is designed for leaders in the field of information engineering, including top managers and professionals in the computer, business, design and education industries. Published by Conde Nast Publications Inc., Wired often carries articles on how technology changes people’s lives.

Cover Price: $59.40

Price: $10.00($1.00/issue)

You save: $49.40(83%)

Issues: 10 issues/12months

小题1:Which of the following magazines is published monthly?

A．Discover

B．Self

C．Instyle

D．Wired小题2:Which two magazines are published by the same publisher?

A．Wired and Instyle

B．Discover and Instyle

C．Self and Discove

D．Self and Wired小题3:Which magazine offers the biggest price cut?

A．Instyle

B．Wired

C．Discover

D．Self小题4:Those who are interested in management and the use of high technology would probably choose _____.

A．Instyle

B．Self

C．Wired

D．Discover

DSA体位设计的意义在于

A．显示心脏的三维结构

B．高像质地发现和显示病变部位和形态

C．显示血管的三维结构

D．显示血管的平面影像

E．显示心脏的平面影像

取中脘、神阙、足三里治疗腹痛之

A．寒证

B．实证

C．虚证

D．热证

财产处分行为是指直接发生财产权移转或消灭效果的行为，财产处分行为的结果是使权利的移转，权利的内容的缩小或改变，权利上设定负担以及权利消灭等。

根据上述定义，下述行为中不属于财产处分行为的是（）。

A．为担保一笔债务，甲公司将自己所有的房产抵押，抵押行为使甲公司对该房产的所有权受到限制

B．乙抛弃自己的电视机。抛弃行为使乙对该电视机的所有权消灭

C．丙与丁订立合同，出卖丙的家传古画，并约定7只后丙交付古画。合同行为使丙负担着7日后移转古画所有权的义务

D．丁免除丙的金钱债务，免除行为使丙不必履行偿还金钱的义务