女性,50岁,因上腹部不适,腹胀、纳差、反酸、嗳气行胃镜检查,镜下见大量胆汁流入胃腔

题型:单项选择题

问题:

女性,50岁,因上腹部不适,腹胀、纳差、反酸、嗳气行胃镜检查,镜下见大量胆汁流入胃腔,应选用下列哪种药物治疗最合适()。

A.法莫替丁

B.雷尼替丁

C.多潘立酮

D.胃舒平

E.654-2

考点:消化内科学(医学高级)医学高级消化内科模拟试卷四
题型:单项选择题

当以调查、访问和回忆等口述资料为主要研究对象和依据的口述史学悄然兴起的今天,首先要考虑的问题是历史的当事人或亲历者以及事件内幕的解密程度等因素。下列主题最适合今天按口述史方法研究的是   (      )

A.五四运动当事人

B.一战中的法国老兵

C.美苏冷战的较量

D.《九国公约》的内幕

题型:单项选择题

甲、乙、丙3人合伙出资设立一合伙企业,甲为其个人债务将其在合伙企业中的财产份额出质给丁。根据我国合伙企业法规定,以下观点正确的有( )。

A.甲的出质行为须经其他合伙人一致同意

B.未经其他合伙一致同意,甲向丁出质的行为无效

C.未经其他合伙人一致同意,甲的行为可作为退伙处理

D.未经其他合伙人一致同意,甲应对因其出质行为造成的其他合伙人的损失承担赔偿责任

题型:单项选择题

对刀元件用于确定()之间所应具有的相互位置。

A.机床与夹具;

B.夹具与工件;

C.夹具与刀具;

D.机床与工件

题型:单项选择题

血液透析中病情观察应做到()

A.严密观察血压、呼吸、体温、脉搏

B.观察血液通路流量及压力、温度、浓度

C.准确记录透析时间、脱水量等

D.记录肝素用量

E.注意机器报警,及时排除故障

题型:单项选择题

A small group of Internet security specialists gathered in Singapore to start up a global system to make e-mail and e-commerce more secure, end the rapid growth of passwords and raise the bar significantly for Internet fraud, spies and troublemakers.

The Singapore event included an elaborate technical ceremony to create and then securely store numerical keys that will be kept in three hardened data centers there, in Zurich and in San Jose, Calif. The keys and data centers are working parts of a technology known as Secure DNS, or DNSSEC. DNS refers to the Domain Name System, which is a directory that connects names to numerical Internet addresses. Preliminary work on the security system had been going on for more than a year, but this was the first time the system went into operation, even though it is not quite complete.

The three centers are fortresses made up of five layers of physical, electronic and cryptographic security, making it virtually impossible to damage the system. Four layers are active now. The fifth, a physical barrier, is being built inside the data center.

The technology is viewed by many computer security specialists as a ray of hope amid the recent cascade of data thefts, attacks, disruptions and scandals, including break-ins at Citibank, Sony, Lockheed Martin, RSA Security and elsewhere. It allows users to communicate via the Internet with high confidence that the identity of the person or organization they are communicating with is not being tricked or forged.

Internet engineers like Dan Kaminsky, an independent network security researcher who is one of the engineers involved in the project, want to counteract three major deficiencies in today’s Internet. There is no mechanism for ensuring trust, the quality of software is uneven, and it is difficult to track down bad actors.

One reason for these flaws is that from the 1960s through the 1980s the engineers who designed the network’s underlying technology were concerned about reliable, rather than secure, communications. That is starting to change with the introduction of Secure DNS by governments and other organizations.

The event in Singapore capped a process that began more than a year ago and is expected to be complete after 300 so-called top-level domains have been digitally signed. Before the Singapore event, 70 countries had adopted the technology, and 14 more were added as part of the event. While large countries are generally doing the technical work to include their own domains in the system, the association of Internet security specialists is helping smaller countries and organizations with the process.

The word "counteract"(Line 2, Paragraph 5) most probably means()

A. eliminate

B. offset

C. divert

D. exploit

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