女性，45岁，发现高血压病3年，近日血压24．0／14．6kPa（180／110mm

阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项，并在答题卡上将该项涂黑。

C

Reading can be a social activity. Think of the people who belong to book groups. They choose books to read and then meet to discuss them. Now, the website BookCrossing.com turns the page on the traditional idea of a book group.

Members go on the site and register the books they own and would like to share. BookCrossing provides an identification number to stick inside the book. Then the person leaves it in a public place, hoping that the book will have an adventure, traveling far and wide with each new reader who finds it.

Bruce Pederson, the managing director of BookCrossing, says, “The two things that change your life are the people you meet and books you read. BookCrossing combines both.”

Members leave books on park benches and buses, in train stations and coffee shops. Whoever finds their book will go to the site and record where they found it.

People who find a book can also leave a journal entry describing what they thought of it. E-mails are then sent to the BookCrossing to keep them updated about where their books have been found. Bruce peterson says the idea is for people not to be selfish by keeping a book to gather dust on a shelf at home. zxx.k

BookCrossing is part of a trend among people who want to get back to the “real” and not the virtual(虚拟). The site now has more than one million members in more than one hundred thirty-five countries.

What is the best title for the text?（）

A. Online Reading: A Virtual Tour

B. Electronic Books: A new Trend

C. A Book Group Brings Tradition Back

D. A Website Links People through Books

招标人如需对已出售的招标文件进行必要的澄清或修改，应当在投标截止日期(． )日前以书面形式通知所有招标文件收受人。对招标文件澄清或者修改的内容为招标文件的组成部分。

A．10

B．15

C．20

D．25

关于宫内节育器的并发症，错误的是

A．月经过多

B．宫内节育器嵌顿

C．子宫穿孔，宫内节育器异位

D．盆腔炎

E．宫颈糜烂

少尿是指24小时尿量小于（）

A.70ml

B.100ml

C.200ml

D.400ml

E.500ml

与正面平行的平面，与其它两个投影面（）这样的平面称为（）。它的正投影反映实形。