我国商业银行的二级资本包括（）。A.二级资本工具及其溢价 B.一般风险准备 C.未分

被审计单位日常交易采用自动化控制，以下在销售交易中能够防止商品发运但没有及时开具销售发票的内部控制的是（）。

A．当客户订购单在系统中获得发货批准时，系统自动生成连续编号的发运凭证

B．计算机把所有准备发出的商品与销售单上的商品种类和数量进行比对。打印种类或数量不符的例外报告，并暂缓发货

C．发货以后系统根据发运凭证及相关信息自动生成连续编号的销售发票

D．每张发票的单价、计算、商品代码、商品摘要和客户账户代码均由计算机程序控制

植物细胞和动物细胞中储存能量的糖类依次是[ ]

A．纤维素和糖原

B．麦芽糖和乳糖

C．淀粉和糖原

D．葡萄糖和纤维素

根据我国法律规定，中国公民、组织在中国境内一律适用于中国法律。外国人在中国领域之外对中国国家或公民犯罪按中国刑法规定应处三年以上有期徒刑的，可以适用中国刑法，但依照犯罪地法律不受处罚的除外。由此可以判断，我国法律对人的效力范围属于：

A．属人主义

B．属地主义

C．保护主义

D．结合主义

The central problem of economics is to satisfy the people’s and nation’s wants. The problem we are faced with is that our (1) , here identified as money, are (2) . The only way we can resolve our (3) is to make choices. After looking at our resources, we must examine our list of (4) and identify the things we need (5) , those we can postpone, and (6) we cannot afford. As individuals, we face the central problem involved in economics — deciding just how to allocate our limited resources to provide ourselves with the greatest (7) of our wants.
Nations face the same problem. As a country’s population (8) , the need for more goods and services grows (9) . Resources necessary to production may increase, but there are (10) enough resources to satisfy the total desires of a (11) . Whether the budget meeting is taking place in the family living-room, in the conference room of the corporation (12) of directors, or in the chamber of the House of Representatives in Washington, the basic problem still exists. We need to find (13) of allocating limited resources in order to satisfy unlimited wants.
A short time ago, economists divided goods into two categories, free and economic. The former, like air and water, were in (14) abundance that economists had no concern about (15) of scarcity and what to do about it. Today many of these "free goods" are in (16) very expensive to use. Pollution has made clean air and water expensive for producers who have to filter their waste products, for consumers who ultimately pay for the producers’ extra costs, and (17) tax-payers who pay for the government’s involvement in cleaning the environment.
In the 1990s, almost all goods are (18) . Only by effort and money can they be (19) in the form people wish.
Meeting the needs of people and the demands from resources available leads to the basic activity of production. In trying to (20) unlimited wants from limited economic goods, production leads to new problems in economics.

数据传输差错的控制主要在OSI参考模型的（）完成?

A.物理层

B.网络层

C.表示层

D.数据链路层