问题 单项选择题

下列疾病由复合性止血机制异常引起的是()

A.过敏性紫癜

B.TFP

C.血友病A

D.维生素K缺乏症

E.vWD

答案

参考答案:E

解析:考点是出血性疾病发病机制。在所列疾病中,过敏性紫癜属血管壁异常所致,ITP因血小板破坏增多引起,血友病A是凝血因子Ⅷ缺乏,为遗传性凝血异常,维生素K缺乏引起获得性凝血因子缺乏,只有vWD即血管性血友病因子vWF生成减少或功能异常伴随FⅧ:C减少,血小板黏附、聚集功能障碍,属复合性止血机制异常引起的疾病。

单项选择题
阅读理解

第三部分:阅读理解(共20小题,每题3分,满分60分)

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

www.bigisland. ong

One of the best Hawaiian travel sites – easy to use, and packed with a full – service menu: accommodations, activities (including description of individual beaches and golf courses), tours, and a section on the island’s volcanic personality – all with links for further information. Developed by the island’s visitors organization, it’s the best overall website on the Big island.

www.nps.gov/havo

A must – read for anyone planning to do some volcano visiting. At first glance, this Naticnal Park Service website for Hawaii Volcanoes National Park is little more than a quick overview (总览), but click on the blue “In - depth” button for the full story. It is packed with both useful travel tips and advice that could even save your life; Read the well – illustrated section, “Viewing Lava(熔岩):Common Sense is Not Enough.” On a lighter note, the pages detail hiking trails throughout the park, with fine government maps and background on the wildlife. See the links page for three other, lesser – known NPS parks on the island. A superb site.

www.konaweb.com

Everything from a visitors’ guide to tips if you are planning a move to the islands, with numerous links. The overview of the island (and especially the beach scenery)

is worth a stop.

www.interpac.net/mtbike

First stop for mountain bikers. Produced by the island’s mountain bike association, it includes descriptions and maps for 10 public off – road trails and contacts for local bike shops.

www.Hawaii.gov/dlnr/dsp/hawaii.html

Brief illustrated guide to the island’s state parks, from the Hawaiian Department of Land and Natural Resources.

www.Coffeetimes.com

If you can resist the Kona coffee pages for a moment, check out the “Alternative Guide to the Big Island” at the bottom of the page. Also some interesting Big Island Links.

56.This passage is a(n)               .

A.collection of travel links  B.introduction of mountain travel

C.suggestion of travel outside     D.collection of traveling pictures

57.If you want to enjoy the beautiful scenery of the islands, you can land the following website EXCEPT         .

A.www.konaweb.com B.www.interpac.net/mtbike

C.www.nps.gov/havo  D.www.Hawaii.gov/dlnr/dsp/hawaii.html

58.If a tourise wants to visit a dead volcano, he can           .

A.go to the Hawaiian Department of Land

B.have a dip into the links of the Big Island

C.go to Hawaiian Volcanoes National Park

D.follow the off – road trails of mountain bikers

59.From the passage, we can infer that         .

A.it is very dangerous to visit the Big Island

B.all the links belong to the same website

C.Coffeetimes has accesses to the Big Island website

D.the writer encourages travelers in mountain biking