原始凭证是登记会计账簿的直接依据。 ( )

联合库存管理的优点有( )。

A．减少了供应链中的需求放大现象

B．获得一流的物流咨询

C．增加了设备与人员的柔性

D．为实现供应链的同步运作提供了条件和保证

"减小滚动轴承内孔与主轴外圆的配合间隙，可以使主轴在轴承内（）减小，有利于提高主轴的旋转精度。"

A.热胀量

B.倾斜量

C.跳动量

D.粗糙度

患者四肢厥逆，恶寒卧，呕吐不渴，腹痛下利，神衰欲寐，舌苔白滑，脉微细。治疗应首选

A．四逆汤
B．当归四逆汤
C．右归丸
D．四逆散
E．大建中汤

At the beginning of the twentieth century, North American society held, as an ideal, the Nuclear Family. This presumably perfect residential, social, and economic unit consisted of an adult male, an adult female and their minor children. This structure was thought to be stable and long lasting.
However, a few decades later, the structure of that ideal family was being altered radically even while it was being touted as the structure to be aimed for. Popular magazines bemoaned the loss of the Nuclear Family and its replacement with inferior forms.
There are a number of factors that are acting in concert to apply pressure on the Nuclear Family and generate a variety of new structures. Some of these are:
The definition of marriage has changed somewhat in that few people now consider it to last "until death do us part". The concept of monogamy (the marriage of one man and one woman) has been modified to a form now referred to as serial monogamy (the marriage of one man and one woman at a time). This reflects the increasing equality of women and men in terms of economic advantage and the recognition that many women no longer depend on men for their survival. Women are acquiring independence and have become empowered to make their own choices. With this independence, the need to form a relationship with a man becomes less important. This change embodies the concept that the marriage is temporary and can be terminated by either partner at any time. Associated with this, of course, is the relaxation of the divorce laws and the significant reduction of the shame that had one time been attached to divorce.
The economy of North America has resulted in a two-tier system of a few rich who control most of the resources and a large portion of the population who control almost none of the resources. Because of this, many couples are forced to have both partners with full-time jobs outside the home. There are unintended byproducts of the need for a double income. The most important of these is the replacement of a mother-oriented socialization of children to a "stranger-oriented" socialization system reflected in the growth of the childcare industry. Also, either partner is financially able to end the marriage without significant hardship.
The combination of these changes will in the coming decades have a profound effect on the structure of the family of North America. As a result, the family will be a fluid, constantly changing structure with variable household arrangements as the norm.

The author’s purpose is to ______.

A．give the basic facts of marriage in North America

B．explain the reasons why the divorce rate is high in North America

C．introduce why both husband and wife have to work outside their home

D．give a picture of family structural change in North America

阅读理解。

     请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。注意：每空

格1个单词。

     Wondering how many calories the banana cream pie on your plate has? Some Japanese have a novel way

to find out: Photograph it with a cellphone and send the image to an expert. With cellphones becoming

common in Japan and rising concern over expanding waistlines, health-care providers will allow the

calorie-conscious people to send photos of their meals to nutritionists (营养学家) for advice.

      Public health insurance offices in Osaka in Western Japan have launched the service on a trial basis. About

100 cardiac (心脏病的) patients signed up in the first year, followed by diabetes and obesity patients in the

second."Japanese have been getting fatter, especially men in their 20s and 30s. There is concern over what they

learned about nutrition when they were younger," the Osaka official, Satomi Onishi, said."We're hoping that this

program can help us deal with the problem."

     Osaka is using a system developed by Asahi Kasei Corp. The system is operating among about 150

health-care providers and local governments around the country Nutritionists can work with photos from one

day's meals to several weeks' worth. Results come back in three days. People can also log on a website to get

further information.

     Dr Yutaka Kimura has developed a similar system at Kansai Medical University's Hirakata Hospital, also in

Osaka. Five patients have taken part in the programme, which costs $37 to join and $21 per month. Patients

photograph meals over the course of three to seven days, and a nutritionist e-mails advice to them. "Patients

used to fill in meal logs, but people tend to forget things or underestimate (低估) their portions (份)," Kimura

said. "Photographing meals and e-mailing them can be easier and get more accurate results."

     As Japanese have turned to bigger portions and more meat and fried foods, obesity and related illnesses

such as high blood pressure have become a rising concern. The Health Ministry estimated last year that more

than half of Japanese men and about one in five women between 40 and 70 years old were at the increased

risk of heart disease, type II diabetes and other diseases because of obesity. With the Health Ministry hoping

to see a 25% reduction in the number of people at the risk of these diseases by 2015, Osaka officials hope the

cellphone program will help.