根据你的判断，下面的相关关系取值哪一个是错误的（）。

A . A、在一定的温度下，辐射能力越大的物体，其黑度越大。 B . B、在同一温度下，物体的吸收率A与黑度ε在数值上相等，因此A和ε的物理意义相同。 C . C、黑度越大的物体吸收辐射的能力越强。 D . D、黑度反映了实际物体接近黑体的程度。

A . 人是战争的决定因素 B . 武器是战争的决定因素 C . 人和武器不可分离 D . 武器是战争的重要因素

A . 正确 B . 错误

A . A、由公司支付的费用 B . B、由项目预算直接支付的费用 C . C、由采购部门支付的费用 D . D、在做成本预算时就考虑到的投入

A . A、参照型 B . B、酬劳型 C . C、正式型 D . D、专家型

A . 删除此账号，然后重新建立账户 B . 利用【Active directory用户和计算机】工具，取消用户帐户锁定 C . 利用【Active directory用户和计算机】工具，启用此用户帐户 D . 添加此用户到DomainUsers组

A . 逆流时，Δtm一定大于并流、错流或折流时的Δtm； B . 采用逆流操作时可以节约热流体（或冷流体）的用量； C . 采用逆流操作可以减少所需的传热面积； D . 温度差校正系数φΔt的大小反映了流体流向接近逆流的程度。

A . A、解释他们未被选中的原因，告知能学到什么经验并改进，以便下次如何能获得更好的机会 B . B、为节省时间、精力等成本，只选择部分未中标的供应商进行座谈 C . C、座谈是非正式的 D . D、座谈的过程不能用来改变供应商的选择

A、抽样误差只存在于概率抽样中 B、抽样误差也存在于非概率抽样中 C、抽样框误差不属于非抽样误差 D、无回符号误差不属于非抽样误差

A . A、trunk没有工作 B . B、vtp版本号不一致 C . C、vtp都是透明模式 D . D、vtp是自动协商的

A . A.开始—结束 B . B.结束—开始 C . C.开始—开始 D . D.结束—结束

A . 电线短路着火，立即用水浇灭 B . 加油站、面粉厂贴有“禁止烟火”的标志 C . 焊割金属时，用稀有气体作保护气 D . 做菜时油锅不慎着火，迅速用锅盖盖灭

Survey Finds Many Women Misinformed about Cancer Sixty-three percent of American women think that if there’s no family history of cancer. You're not likely to develop the disease, a new survey found. 1n fact，most people who develop cancer have no family history of cancer。according to the American College of Obstetricians and Gynecologists（ACOG）（美国妇产科医师学会），which sponsored the survey. "Too many women are dying from cancer。”Dr. Douglas W. Laube, ACOG's immediate past president，Said during a Friday teleconference. "An estimated 200070 women will die in the U. S. this year，and over 600. 078 women will be diagnosed with cancer. The results of this survey found a worrisome（令人担忧的）gap in women's knowledge about cancer." Based on the findings ACOG is increasing its efforts to educate women about cancer and the need for regular screening tests. Although the survey found many misconceptions（错误观念）about cancer, 76 percent of women surveyed did say they feel knowledgeable about how they can reduce their risk of the disease. However, only 52 percent said they were doing enough to reduce that risk. And 10 percent said they hadn’t done anything in the past year to lower their risk. Seventeen percent said they wouldn’t change their lifestyles even if changes would lower their cancer risk.. Many women said they were afraid to undergo screening out of fear of finding cancer. Twenty percent said they didn't want to know if they had cancer. In response to these findings ACOG will launch on Oct. 2g a new website-Protect& Detect What Women should know about cancer. The guide is designed to help women to take charge of their health and improve their understanding of their risk of cancer-and the lifestyle. steps they can take to cut that risk. 16 Many American women have a poor knowledge of cancer. A Right B Wrong C Not mentioned

An annual report of a company provides information about its business performance for certain people. These people include the investors, potential investors and other stakeholders. From the report, people can understand the company’s business scope, recent situation and future development. The main parts of an annual report usually include chairman’s letter, financial statements and operation analysis. ● CHAIRMAN’S LETTER Usually, an annual report should contain a letter from the chairman. The letter should provide details about the successes and the challenges of the past year. It should also include the future outlook for the company. ● OPERATION ANALYSIS The operation analysis is an overview of the business in the past year. It usually includes new hires and new product introductions. At the same time, it will introduce business acquisitions and other important issues. ● FINANCIAL STATEMENTS The financial statements are very important for an annual report. People can know the company’s performance in the past from the statements. It usually consists of the following three aspects. The first one is the profit and loss statement. The second one is the balance sheet. And the third one is the cash flow statement. 1. An annual report of a company provides some information about its business performance for certain people.{T、F} 2. People can know everything of the company from the annual report.{T、F} 3. An annual report usually includes chairman’s letter, financial statements and operation analysis.{T、F} 4. A chairman’s letter should include the strategic direction moving forward.{T、F} 5. This passage is mainly about the main parts of an annual report.{T、F}

A．-0.86 B．0.78 C．1.25 D．0

A．删除此账号，然后重新建立帐户 B．利用【Activedirectoy用户和计算机】工具，取消用户帐户锁定 C．利用【Activedirectoy用户和计算机】工具,启用此用户账户 D．添加此用户到DomainUsers组

在数据库逻辑设计中，当将E-R图转换为关系模式时，下面的做法哪一个是不正确的？(50)。 A．一个实体类型转换为一个关系模式 B．一个联系类型转换为一个关系模式 C．由实体类型转换成的关系模式的主键是该实体类型的主键 D．由联系类型转换成的关系模式的属性是与该联系类型相关的诸实体类型的属性的全体

A．两个变量之间是非线性关系 B．两个变量都是随机变量 C．自变量是随机变量，因变量不是随机变量 D．一个变量的数值增大，另一个变量的数值也应增大

A．＞=0 and ＜=1 B．[销售折扣]＞=0 and [销售折扣]＜=1 C．销售折扣＞=0 and 销售折扣＜=1 D．0＜=[销售折扣]＜=1

A．12m B．16m C．18m D．20m

A．逆流时，△tm一定大于并流、错流或折流是的△tm B．采用逆流操作可以节约热流体（或冷流体）的用量 C．采用逆流操作可以减少所需的传热面积 D．温差修正系数Φ的大小反映了流体流向接近逆流的程度

A．相关系数的取值在-1．00到+1．00之间，常用小数形式表示 B．仅从相关系数值的大小来看，相关系数值越大，表示相关程度越密切 C．当两个变量的相关系数达到1时．说明一个变量决定另一变量的大小 D．两个变量的相关系数值是两个变量共变的比例

A．相关系数不会取负值 B．相关系数是度量两个变量之间线性关系强度的统计量 C．相关系数是一个随机变量 D．相关系数的绝对值不会大于1