急性胰腺炎病因包括( )A．胆道蛔虫病 B．高钙血症 C．十二指肠球部溃疡无并发症

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多余选项。

Visiting London can be an expensive trip.        小题1:       The following steps can help you find cheap alternatives for transport for your London trip.

●Familiarize yourself with the city. Do some homework about different parts of London ahead of time and determines specifically the area where you will be staying.                            How to establish where in the city you will be staying and the distance you are from the major tourist attractions you want to visit?         小题2:       .

●Find a local provider of Transport for London tickets or travel cards, since your first bargain purchase will be an Oyster Card. Traveling around London with an Oyster Card will give you access to the cheapest option of transportation methods .           The Oyster Card is accepted citywide on buses, boats and the London Underground, known by the locals as “the tube”.

●        小题3:          . The Tube is the cheapest and most reliable form of transportation and runs from around 6 am. until around 1 am., depending on the line or the station.

●Make the most of the Oyster Card.      小题4:       , with a high concentration in central London. If you are staying anywhere in central London, there will be a tube station less than 10 minutes away.

The Transport for London website offers a tube station search facility to find the nearest subway station to any location in the city. When you find a tube station, you can easily locate the closest bus stop by using the comparison bus-tube maps at the station’s entrance.

Follow the Transport for London Tube Guide to your destinations and always plan ahead.           小题5:    , wasted trips on the tube and doubling back on your journey.

A．You can use a street map, or an online map search engine.

B．By visiting the Transport for London website, people can avoid getting lost.

C．So establishing a budget and finding bargains will help you get around London on the cheap.

D．The bus is the cheapest means of transport in London.E. Seek out your nearest Tube Station.

F. Making a plan for transport will save your unnecessary expenses,

G. There are 287 tube stations in London that accept the Oyster Card,

某居民小区建设项目，施工内容主要包括场地挖方和平整、开挖基槽、铺设管线、回填基坑、地基处理和上部建筑施工以及环保处理工程和绿化工程，以及边坡爆破工程，爆破点靠近村庄。小区建设需要考虑与当地自然和社会景观协调问题。小区北侧有边坡，山脊走向接近南北向，长度约437m，边坡施工的主要内容有：边坡平整、石方清运、边坡挡墙类型、排水措施及防渗工程、景观绿化工程等。项目西侧有某电厂的灰场，占地面积约2000m²。

试进行营运期固体废物影响分析。

下列哪项不符合神经源性肿瘤CT表现（）

A.起源于椎管内神经根的神经纤维瘤可呈哑铃状

B.多数神经鞘瘤因含脂肪较多而呈比周围肌肉低的密度

C.一侧脊柱旁区圆形或椭圆形肿块影

D.边缘锐利，附近骨骼可形成压迹

E.增强扫描常不强化

镜下脓尿是指离心沉淀后的尿沉渣在每高倍镜视野中见到的白细胞为( )

A．1个
B．2个
C．3个
D．4个
E．5个

圆柱表面钻孔容易产生的主要问题是孔的中心对工件中心的（）超差。

A.同轴度

B.位置度

C.对称度

D.垂直度