()是为了使在计算机网络中的通信双方能顺利进行信息交换而双方预先共同约定并共同遵循的

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问题:

()是为了使在计算机网络中的通信双方能顺利进行信息交换而双方预先共同约定并共同遵循的规程和规则。

A.网络协议

B.加密技术

C.通信技术

D.安全技术

考点:经济学电子商务概论电子商务概论题库
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用友软件中,账套管理包括账套的()等功能。

A.建立

B.修改

C.引入

D.输出

题型:单项选择题

PQM是某弹性绳上的三个质点,沿绳建立x坐标轴。一简谐横波正在沿x轴的正方向传播,振源的周期为0.4s。在t=0时刻的波形如图所示,则在t=0.2s时

A.质点P处于波谷

B.质点P处于平衡位置且向上运动

C.质点Q处于波峰

D.质点M处于平衡位置且向上运动

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危害健康的行为不包括()

A.高脂高糖低纤维素饮食

B.A型行为

C.不良生活习惯

D.戒烟

E.C型行为

题型:单项选择题

Passage Seventeen (On the President’s Program)

President Arling has put his long awaited economic restructuring program before the Congress. It provides a coordinated program of investment credits, research grants, education reforms, and tax changes designed to make American industry more competitive. This is necessary to reverse the economic slide into unemployment, lack of growth, and trade deficits that have plagued the economy for the past six years.

The most liberal wing of the President’s party has called for stronger and more direct action. They want an incomes policy to check inflation while federal financing helps rebuild industry behind a wall of protective tariffs.

The Republicans, however, decry even the modest, graduated tax increases in the President’s program. They want tax cuts and more open market. They say if federal money has to be injected into the economy, let it through defence spending.

Both these alternatives ignore the unique nature of the economic problem before us. It is not simply a matter of markets or financing. The new technology allows vastly increased production for those able to master it. But it also threatens those who fail to adopt it with permanent second-class citizenship in the world economy. If an industry cannot lever itself up to the leading stage of technological advances, then it will not be able to compete effectively. If it cannot do this, no amount of government protectionism or access to foreign markets can keep it profitable for long. Without the profits and experience of technological excellence to reinvest, that industry can only fall still further behind its foreign competitors

So the crux is the technology and that is where the President’s program focused. The danger is not that a plan will not be passed, it is that the ideologues of right and left will distort the bill with amendments that will blur its focus on technology. The economic restructuring plan should be passed intact. If we fail to restructure our economy now, we may not get a second chance.

1.The focus of the President’s program is on

A.investment.

B.economy.

C.technology.

D.tax.

2.What is the requirement of the most liberal wing of the Democratic-party?

A.They want a more direct action.

B.They want an incomes policy to check inflation.

C.They want to rebuild industry.

D.They want a wall of protective tariffs.

3.What is the editor’s attitude?

A.support.

B.distaste.

C.Disapproval.

D.Compromise.

4.The danger to the plan lies in

A.the two parties’ objection.

B.different idea of the two parties about the plan.

C.its passage.

D.distortion.

5.The passage is

A.a review.

B.a preface.

C.a advertisement.

D.an editorial.

题型:单项选择题

软件测试方法中属于静态测试方法的是( )。

A.黑盒测试

B.逻辑覆盖

C.错误推测

D.人工检测

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