岩土工程投标书出现下列（）项情况时，视为废标。（） A.标书未按招标文件的要求予以密

对物业所有权人来说，物业管理应达到的目标是使物业发挥最大的()和经济效益。

A.环境效益

B.使用效益

C.社会效益

D.综合效益

某班参加数学兴趣小组的人数比参加绘画兴趣小组的人数的2倍少12人，两个兴趣小组都参加的为3人，两个兴趣小组都不参加的为30人，全班人数为60人。

（1）参加数学兴趣小组和绘画兴趣小组各有多少人？

（2）只参加数学兴趣小组的有多少人？占全班的百分比为多少？

（3）只参加绘画兴趣小组的有多少人？占全班的百分比为多少

（4）请根据以上计算的数据，画出只喜欢数学的人数，只喜欢绘画的人数，既喜欢数学又喜欢绘画及二者皆不喜欢的人数占全班百分比的扇形统计图。

皮肤结核（）。

A.肉芽肿

B.纤维素样坏死

C.淀粉样变性

D.渐进性坏死

E.干酪样坏死

阅读理解。

     Shift (改变) Happens by Robert Holden

     Price: $ 6.49

     It's an excellent book that will greatly improve your life. It has insightful (富有洞察力的) wisdom that

is easy to apply (应用) in everyday life. It's written in a very thoughtful and humorous (幽默的) way.

Read it when you are stressed (压力的) and it will help you remember what is important in your life.

Balancing Work & Life by Robert Holden

     Price: $ 10.50

     The book deals with the key challenges of our life. It is a must-read for anyone who is trying to

balance work success, family joy and daily life.

     ★Practical techniques show you how to set your goals and make proper choices.

     ★Clear text and illustrations (图表) cover every aspect (方面) of defining (定义) success and

achieving balance.

     ★Accessible (易懂的) charts (图) and diagrams (图表) explore different choices for taking actions

and provide examples.

Happiness Now by Robert Holden

Price:$8.00

     This book explains what holds us back from being happy in our lives. Holden analyzes(分析) these

similar questions and in the process you will become more informed about what's really going on in your

mind. This is a must-have book for anyone wanting to understand how your thoughts keep you from your

happiness.

     The Secrets of Relationships by Renshaw

     Price: $9.50

     Are you looking for a satisfying relationship? If so, you should read this book and discover:

     ★The secret of finding the right partner

     ★The secret of communicating successfully

     ★The secret of getting along well with others

     ★The secret of getting what you want

     This book is your passport to a whole new relation-ship experience. Order online now and you can

get a 20% discount (折扣).

     For more information, please click(点击) here.

1. If you find it hard to get along with others, which book can offer you help?

A. Happiness Now      

B. Balancing Work & Life

C. Shift Happens        

D. The Secrets of Relationships

2.  All of these books mainly help people _____. 

A. to make friends easily            

B. to improve their quality of life

C. to find a better job                

D. to achieve their goals

3. If you want to buy two copies of Balancing Work & Life and one copy of Happiness Now online, how much would you have to pay?

A. $27    

B. $23.20    

C. $26.    

D. $5.8

二尖瓣狭窄的病理生理改变哪项是正确的（）

A.肺血管阻力增高

B.轻度病人降低左房压可提高心排血量

C.左室舒张期负荷过重

D.左房压>25mmHg，100%病人血管外肺水增多

E.瓣口面积<1.0cm²时，肺血管阻力急骤降低