我国作物生产的出路是什么？

关于应激性溃疡不正确的是 （）

A.多发生于胃，也可累及食管

B.不会穿透胃壁全层

C.最明显的症状是呕血、柏油样便

D.可发生大出血

E.可发生于十二指肠

按产权的所有者性质分类，产权交易可分为（）。

A.有形资产产权交易

B.无形资产产权交易

C.国有资产产权交易

D.集体资产产权产易

E.非国有、非集体资产产权交易

在省略和夸张的基础上把具有典型特征的形象，合乎情理地结合在一起的图案变化手法叫（）法。

A、添加

B、对称

C、装饰

D、自由

阅读以下关于办公自动化(OA)系统的相关叙述，根据要求回答问题。
[说明]
某企业的办公自动化(OA)系统采用Browse/Server架构，服务器是一台PC Server(4路2.7 GHz处理器，4 GB内存)，安装的平台软件包括Microsoft Internet Information Server 5.0、ASRNET和SQL Server2000。现对该OA系统进行负载压力测试，采用专业的负载压力测试工具来执行测试，并使用2台笔记本电脑安装测试工具模拟客户端执行“登录”业务操作。测试目标分别为以下两个。
(1)测试系统分别在2 Mbps和4 Mbps网络带宽下，能够支持用户登录的最大并发用户数。
(2)测试服务器的吞吐量(即每秒可以处理的交易数)，主要包括服务器CPU平均使用率达到85%时系统能够支持的最大吞吐量，以及服务器CPU平均使用率达到100%时系统能够支持的最大吞吐量。
本次测试的性能需求是：指标“响应时间”合理范围为0～5s。
在2Mbps和4Mbps网络带宽的测试环境下，客户端性能及服务器资源使用情况的测试结果如表3—11所示。

表3-11性能测试结果
网络带宽	测试对象	测试指标	平均值
2Mbps	客户端性能	登录响应时间	3.391s
		虚拟用户数	N/A
		每秒处理完成登录的个数	11.897交易/s
	服务器资源使用情况	CPU使用率	78%
4Mbps	客户端性能	登录响应时间	4.795s
		虚拟用户数	N/A
		每秒处理完成登录的个数	13.447交易/s
	服务器资源使用情况	CPU使用率	98%

在2Mbps带宽的网络测试环境下，负载压力测试工具上客户端性能的显示结果如图3-16所示(注：图中登录响应时间的纵坐标单位是0.1s)，服务器资源使用情况如图3-17所示。

在4Mbps带宽的网络测试环境下，负载压力测试工具上客户端性能的显示结果如图3—18所示(注：图中登录响应时间的纵坐标单位是0.1s)，服务器资源使用情况如图3—19所示。

[问题3]
在4Mbps带宽的网络测试环境下，分析案例中的测试结果，说明服务器CPU资源使用率是否合理，以及增加带宽是否是提高系统性能的有效方法，并简要说明理由。

Part 4

Questions 26-45

·Read the following passage and choose the best word for each space.
Money spent on advertising is money spent as well as any (26) know of. It serves directly to assist a rapid of goods at reasonable prices, (27) establishing a firm home market and so making it possible to provide (28) export at competitive prices. By drawing attention to new ideas it helps enormously to raise standards of living. By helping to increase demand it (29) an increasing need for labor, and is therefore an effective way to fight unemployment. It lowers the costs of many services: (30) advertisements your daily newspaper would cost four times as much, the price of your television license would need to be doubled, and travel by bus or tube would cost 20 percent more.
And perhaps most important of all, advertising provides a guarantee of reasonable value in the products and services you buy (31) the fact that twenty-seven Acts of Parliament govern the terms of advertising, no regular advertiser dare promote a product that fails to live (32) the promise of his advertisements. He might fool some people for a little (33) through misleading advertising. He will not do so for long, for mercifully the public has the good (34) not to buy the inferior article more than once. If you see an article (35) advertised, it is the surest proof. I know that the article does what is (36) for it, and that it represents good value.
Advertising does more for the (37) benefit of the community than any other force I can think of.
There is one more point I feel I ought to (38) on. Recently I heard a well-known television personality (39) that he was against advertising because it persuades rather than informs. He was drawing (40) fine distinctions. Of course advertising (41) to persuade.
If its message were (42) merely to information—and that in itself (43) difficult if not impossible to achieve, (44) even a detail such as the choice of the color of a shirt is subtly persuasive — advertising would be so boring (45) no one would pay any attention. But perhaps that is what the well-known television personality wants.

A．confessed

B．confined

C．confided

D．restrained