电铲的工作行走机构闭合履带每侧有（）块，履带板之间用销轴连接。

(二)
某城市隧道工程项目，采用喷锚暗挖法施工，该工程施工项目部针对工程的特点，在施工组织设计的每一个环节抓住其关键，做出了最恰当的安排，并选择了合理有效的措施。
在施工过程中，喷锚暗挖加固支护的方法采用小导管注浆措施，小导管注浆采用石灰砂浆，并充满钢管及周围空隙，经过试验确定了合理的注浆量和注浆压力。在砂层注浆施工中采用了渗入注浆法，这样可提高固结后的强度、抗渗、稳定和耐久性能。
在注浆施工期内，为了防止注浆液溢出或超出注浆范围，施工人员随时监测地下水的受污染情况。
问题
1.城市隧道工程的主要施工方法有哪些

ARP的功能是（），RARP协议的功能是（）。

RARP协议的功能是（）

A．由目标的IP地址求目标的MAC地址

B．由目标的MAC地址求目标的IP地址

C．由源的IP地址求源的MAC地址

D．由源的MAC地址求源IP地址

Dear NMAI(National Museum of the American Indian) Supporter，

Old stereotypes(思维定式) die hard. And when it comes to the way Native Americans have been viewed throughout history and continue to be viewed today, the stories about life in Indian Country are sadly overshadowing the truths. Most Native Americans don't live in tipis(圆锥形帐篷), and we don't greet one another by saying,  “How.”

To combat misconceptions like these, I need help from people who understand there's more to Native American cultures than the offensive cartoons that you see in movies and television.

I think that you might be one of these people.

Please join NMAI today and enjoy exclusive benefits like our full－color quarterly magazine American Indian, and Members－only discounts at all Smithsonian, NMAI Museum Stores, and at our Zagat－rated Mitsitam Native Foods Café.

Plus, through this email, you can take advantage of our special price of $22－more than 10% off our regular membership charge.

With your support, the National Museum of the American Indian can tell the story both past and present of Native life and culture in North, Central, and South America.

In just one visit to either of our Museums in Washington, DC, or New York City, you can watch a performance by traditional Native dancers... attend a lecture by a leading voice from the world of Native literature... spend an afternoon taking an informative audio tour of the Museum's distinctive grounds... and try your hand at Native crafts like pottery and beadwork. And for those who are unable to visit the museums in person, much of our extensive collection of more than 800，000 objects is cateloged on our website.

Only with your generosity can we share the Native story, awaken children to an interest in Native culture, and bring the Museum experience to people who can't travel to our Museums in person.

By joining the Museum today, you will take the first step in putting an end to the old stereotypes and long－held prejudices that have contributed to an incomplete picture of Native traditions and accomplishments.

Sincerely，

Kevin Gover

Director

小题1:What is the author's intention in writing this letter?

A．To call for more people to join in volunteer work.

B．To carry out researches on Native Americans.

C．To invite more people to be members of the museum.

D．To raise more donations for the museum.小题2:Which of the following statements describes the life and culture of Native Americans correctly?

A．They are good at pottery and beadwork.

B．Most of them live in tipis.

C．They greet others by saying, “How.”

D．They like designing offensive cartoons.小题3:If you join NMAI, you can enjoy the following benefits except ________．

A．free full－color quarterly magazine American Indian

B．Members－only discounts at all Smithsonian

C．Members－only discounts for buying in NMAI Museum Stores

D．a free meal at Zagat－rated Mitsitam Native Foods Café小题4:Regular membership fee  of the NMAI is about ________．

A．$30

B．$20

C．$15

D．$25

女性，53岁，出门买菜，听到一个声音讲“大破鞋又出门了”，患者听了十分气愤，掉头回家，声音马上又说“装洋蒜”，这种感知觉障碍称是（）。

A.评论性幻听

B.争议性幻听

C.命令性幻听

D.思维化声

E.非言语性幻听

慢性胰腺炎时的腹泻（）

A．分泌功能亢进为主的慢性腹泻

B．消化功能障碍为主的慢性腹泻

C．吸收功能障碍为主的慢性腹泻

D．运动功能紊乱为主的慢性腹泻

E．混合原因