更多“在51单片机中，可变波特率的多机通信应采用（）。”相关的问题
“韩孟诗派”的理论主张主要是“不平则鸣”说和“笔补造化”说。
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The balance of payments is a statistical record of all the economic transaction between residents of...Which of the following statements is tree A. Deficits may lead government to reduce interest
A key definition that needs to be resolved at the outset is that of a domestic and foreign resident. It is important to note that citizenship and residency are not necessarily the same thing from the viewpoint of the balance of payments statistics. The term residents comprises individuals, households, firms and the public authorities. There are some problems that arise with respect to the definition of a resident. Multinational corporations are by definition resident in more than one country. For the purposes of balance - of - payments reporting the subsidiaries of a multinational are treated as being a resident in the country in which they are located even if their shares are actually owned by domestic residents. Another problem concerns the treatment of international organizations such as the International Monetary Fund, the World Bank, United Nations and so forth. These institutions are treated as being foreign residents even though they may actually be located in the reporting country. For example although the International Monetary Fund is located in Washington, contributions by the US government to the Fund are included in the US balance -of-payments statistics because they are regarded as transactions with a foreign resident. Tourists are regarded as being foreign residents if they stay in the reporting country for less than a year.
The criterion for a transaction to be included in the balance of payments is that it must involve a transaction between a resident of the reporting country and a resident from the rest of the world. Purchases and sales between residents from the same country are excluded.
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万用表测量前指针应中“Ω”（）刻度的位置.
A.∞
B.中间
C.O
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所列的会计公式正确的是（）。
A.单位边际收益=单位销售收入-单位可变成本 B.单位边际收益=产品销售价格-单位固定成本 C.单位边际收益=单位销售收入-单位固定成本 D.单位边际收益=产品销售价格-单位可变成本
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某公司股票的β系数为2，无风险利率为6%，市场上所有股票的平均报酬率为10%，则该公司股票的期望报酬率为（）
A．8%
B．14%
C．16%
D．25%
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钢轨焊前矫直不能对（）矫直。
A.钢轨上下弯曲B.钢轨扭曲C.钢轨左右弯曲D.硬弯
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齿轮安装中心距误差不仅影响齿轮的接触位置，而且影响（）。
A . A.齿侧间隙
B . B.接触面积
C . C.传动比
D . D.传动效率
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下图是硫原子的原子结构示意图，下列对硫原子的叙述正确的是（）。
下图是硫原子的原子结构示意图，下列对硫原子的叙述正确的是（）。
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下列哪项症状对鉴别心源性哮喘和支气管性哮喘最有价值（）
A.突起夜间呼吸困难
B.咳粉红色泡沫痰
C.端坐呼吸
D.肺部闻及哮鸣音
E.氨茶碱治疗有效
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下面哪项包括新企业的每个阶段将在何时完成的信息(例如，开始生产、初次销售、突破盈亏平衡点等)。
A.时间表和里程碑B.附录C.风险因素D.愿景与使命
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运输需求的一般规律是运输需求与运价呈______。
A．反方向变化
B．正方向变化
C．时而正向，时而反向
D．无关
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药物产生毒性反应的原因是（）
A.患者不能耐受
B.用药剂量过大
C.用药时间过长
D.患者有遗传缺陷
E.机体对药物的敏感性高
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Do you mind my （） here
A. smoke
B. smokes
C. smoking
D. smoker
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建设单位招聘并培训生产管理人员，组织相关人员参加设备安装、调试等工作是（）阶段的工作。
A.建设准备
B.施工安装
C.生产准备
D.竣工验收
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下列关于平板电脑的描述，正确的是（）
A.平板电脑属于输入设备
B.平板电脑属于输出设备
C.平板电脑既是输入设备也是输出设备
D.平板电脑不属于输入输出设备
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