已知某项目设备及工、器具购置费为1000万元，建筑安装工程费为580万元，工程建设其

下列规范性用语中属于任意性规范的是( )。

A．设立股份有限公司应当达到500万元人民币的法定资本最低限额
B．当事人订立合同可以采取书面形式、口头形式或其他形式
C．公司应当依法设置会计账簿
D．票据的出票日期应当使用中文大写

检测之前的准备工作有（）。

A、检测之前就检查样品或试样的技术状态是否完好

B、检测用仪器设备的功能和准确度是否符合要求；使用状态是否符合检定和校准状态

C、环境技术条件是否满足检测的技术要求

D、检测人员按照规定的检测程序和检验规程进行检测操作

键的顶部间隙过大时，可以在键底加垫片进行调整。

Studies from 10 nations reveal that the rates of depression among women are twice as high as they are among men. Do women have a biological bent for depression, or are social double standards the major cause

Mental health workers have long noticed among the clinically depressed women take up a bigger proportion. Until recently, though, it was unclear whether more women than men were ill or, instead, whether more women sought help. In fact, a mounting collection of studies has confirmed that major depression is twice as common among women as it is among men. "This is one of the most consistent findings we have ever had," says Myrna M. Weissman of Columbia University.

Scientists searching for explanations are challenged by the fact that a variety of cues prompt depression in different people. Sorting out which factors might have a greater influence on women has not proved easy. Both sexes stand an equal chance of inheriting major depression, so genes are most likely not to blame. Yet hormones and sleep cycles--which differ dramatically between the sexescan alter mood. Also, many workers have proposed that social discrimination might put women under high levels of stress.

In 1990 an international group examines mood disorders. In the 10 nations reviewed so far, the team has found that among generations reaching maturity after 1945, depression seems to be on the rise and occurs at a younger age. Although overall incidence varies regionally, "everywhere the rates of depression among women are about twice as high as they are among men," Weissman says.

In contrast, lifetime rates for manic-depressive illness do not differ according to sex or culture. Mark S. George and his colleagues at the National Institute of Mental Health (NIMH) recently studied which regions of the brain have greater blood flow during periods of depression. George found that "the brain activity of the men and women of depression looked very different. " He has since compared feelings of anger, anxiety and happiness, finding no such big a difference.

Because one in five American women has a history of depression, especially as they often pursue therapy from other sources, sometimes on top of an anti-depressant clinic. Says Leibenluft: "It is remarkable how little work has been done on this subject.

What can we infer from Mark S. George’s research（）

A. In any point of life, more women suffer from depression than men do

B. Although the reasons for depression may differ, there is the same part of brain that would act differently if people have depression, regardless of their gender

C. Depression is the only case when men and women show difference in brain activities

D. Men and women have differences in brain activities when in anger, anxiety and happiness

企业建模的业务活动确定的目的是( )。

A．找出重复性活动

B．找出重复过程

C．找出被遗漏的过程

D．确定业务职能