段落对齐的设置，既可以用工具栏按钮方法，也可以用快捷键方法。右对齐的快捷键为( )

Information systems design is defined as those tasks that focus on the specification of a detailed computer-based solution. Typically, there are four systems design tasks for in-house development.

1) The first task is to specify（）,which defines the technologies to be used by one, more, or all information systems in terms of their data, processes, interfaces, and network components. This task is accomplished by analyzing the data models and process models that are initially created during requirements analys16.

2) The next systems design task is to develop the （）. The purpose of this task is to prepare technical design specifications for a database that will be adaptable to future requirements and expansion.

3) Once the database prototype has been built, the systems designer can work closely with system users to develop input, output and dialogue specifications. The（）must be specified to ensure that the outputs are not lost, misrouted, misused, or incomplete.

4) The fourth design task involves packaging all the specifications from the previous design tasks into a set of specifications that will guide the（） activities during the following phases of the systems development methodology.

Finally, we should（） and update the project plan accordingly. The key deliverable should include a detailed plan for the construction phase that should follow.

we should（） and update the project plan accordingly. The key deliverable should include a detailed plan for the construction phase that should follow.

A．adjust the project schedule

B．reevaluate project feasibility

C．evaluate vendor proposals

D．select the best vendor proposal

以下说法错误的是

A．在钠、钾、铷3种单质中，钠的熔点最高

B．1 molNa₂O₂与1 mol Na₂O所含阴离子的物质的量都是1 mol

C．标准状况下，22.4 LSO₃的物质的量是1 mol

D．Fe与I₂在加热条件下发生反应的产物为FeI₂

000MHz的频率上也有发射。这种发射属于什么发射？

（）《试造轮船先陈大概情形折》认为“惟东南大利，在水而不在陆。”

A.左宗棠

B.林则徐

C.沈葆桢

D.李鸿章

外国甲公司收购中国境内乙公司部分资产，价款为160万美元。并以该资产作为出资与丙公司于2001年4月1日成立了一家中外合资经营企业。甲公司支付乙公司购买金的下列方式中，符合中外合资经营企业法律制度规定的是( )。

A．甲公司于2001年6月30日向乙公司支付80万美元，2002年3月30日支付80万美元
B．甲公司于2001年6月30日向乙公司一次支付160万美元
C．甲公司于2002年3月30日向乙公司一次支付160万美元
D．甲公司于2001年9月30日向乙公司支付 100万美元，2002年6月30日支付60万美元