下图表示菊花的嫩枝和月季的花药离体培养过程，请据图回答下面的问题。不同植物对各种条件

下列各组词语中，没有错别字的一项是：

A．梗概削足适履婉惜盘根错节

B．计酬事必躬亲娇惯甘之如饴

C．蝉联绵里藏针蜇伏开源节流

D．撕打功亏一篑潮汐自付盈亏

利多卡因消除单向传导阻滞是因为（）

A．促进Na⁺内流

B．促进K⁺外流

C．抑制Na⁺内流

D．抑制Ca²⁺内流

E．抑制K⁺内流

近代以来，家庭结构、婚姻观念、妇女地位、服饰装扮逐渐改变。阅读下列材料，结合所学的知识回答问题。（14分）

材料一 在法律方面，洪武年间，明太祖朱元璋下达这么一个诏令，“民间寡妇，30以前夫亡守志，50以后不改节者，旌表门闾，免本家差役。”又命令地方官员制定规章制度，表现突出的赐祠祀，一般的树牌坊，用以奖励贞节……一部二十四史中，明史中的节妇烈女最多。                                  ——摘自费丝言《由典范到规范》

材料二 我在小姊妹的帮忙下，加入了家庭妇联。我看见姊妹们加紧生产，努力学习文化，便愈感到自己的落后，我要好好的向姊妹学习，我也加入了学习班。新婚姻法颁布以后，小姊妹张丽娟告诉我，说可以到家庭妇联申请向朱家离婚，婆婆没有理由阻拦我，于是我离婚了，我自由了。学 ——《一个童养媳的新生》(1950年9月1日《解放日报》)

材料三 图像可以加深对历史变迁的理解。以下是一组图片材料。

材料四   20世纪初，一个引人瞩目的现象，家庭制度在中国受到空前激烈的批判：一个将家庭作为组织、管理社会基础的传统社会基础的传统社会，在现代化进程中，为了从传统之茧中化碟，对家庭制度的批判是必然的。

-----据孟宪范《家庭：百年来的三次冲击给我们的选择》

（1）根据材料一，结合所学知识简析明史中的节妇烈女最多的时代背景。（2分）

（2）据材料二并结合所学知识，回答“我”的婚姻观念发生变化的社会条件是什么？

（3分）

（3）在材料三中，从图1到图2，从图3到图4，你能看出中国服饰变化有什么趋势?

从这种变化中，你能得出中 * * 在不同阶段各有何精神追求?（4分）

（4）从现代化的角度分析，为什么20世纪初的中国“对家庭制度的批判是必然的”？

（3分）

（5）从材料一、二可以看出中国妇女地位逐渐提高,请回答促成这种趋势的基本因素是什么？（2分）

饮食影响药品疗效的机制

服用左旋多巴不宜多食高蛋白食物

A．与蛋白结合，使其失去活性
B．相互结合形成沉淀，吸收减少
C．肠内产生大量氨基酸，阻碍吸收
D．抑制乙醛脱氢酶，出现“双硫仑样反应”
E．酸性尿、排泄慢、减弱活性、加重毒性

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.

It is indicated in Paragraphs 1 and 2 that the global system the Internet security specialists gathered to start up（）

A. is still on the drawing board

B. can put an end to Internet fraud

C. has won specialists much acclaim

D. has multi-advantages over previous ones