首页/ 题库 / [单选题]导致阑尾穿孔最主要的因素是()。的答案

导致阑尾穿孔最主要的因素是()。

单选题
2021-12-28 02:08
A、阑尾腔阻塞
B、阑尾壁受粪石压迫缺血
C、细菌毒力
D、淋巴管阻塞
E、免疫力低
查看答案

正确答案
A

试题解析
急性阑尾炎的病因包括两方面:阑尾管腔阻塞,其最常见的原因是淋巴滤泡的明显增生,约占60%,粪石阻塞占35%;细菌科侵。由于阑尾管腔阻塞,细菌在内繁殖,分泌毒素,损伤黏膜并进入肌层,阑尾壁内压力升高,妨碍动脉血流,造成阑尾缺血,最终造成坏疽、梗死或穿孔。故选A。

相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

A cabinet or space containing the controls or valves for the fixed firefighting system must be().
A cabinet or space containing the controls or valves for the fixed firefighting system must be().
CASE OF DEATH OR SERIOUS INJURY TO A PERSON IN AN ACCIDENT OR SHIPPING DISASTER is().
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
Damage to cargo caused by fumes or vapor from liquids,gases, or solids is known as().
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
()means any person by whom or in whose name or on whose behalf a contract of carriage of goods by sea has been concluded with a carrier,or any person by whom or in whose name or on whose behalf the goods are actually delivered to the carrier in relation to the contract of carriage of goods by sea.
If he is a common carrier,he is absolutely responsible to the owner of the goods carried ()any loss or damage to them unless caused by an Act of God or the Queen’s enemies,or the inherent vice in the goods themselves,or the negligence of the owner of the goods,or a general average sacrifice.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
Owners are to be responsible for loss of or damage to the goods or delay in delivery of the goods only in case the loss,damage or delay has been caused by the improper or negligent stowage of the goods.This means that().
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
翻译:With Average or With Particular Average(WA or WPA)()
()shall be liable for loss of and damage to the Vessel and/or goods arising or resulting from inaccuracies in stating the description,quantity,weight,measurement or contents.
Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo,without the authorization or privity of the Shipowner or his agent,is().
广告位招租WX:84302438

免费的网站请分享给朋友吧