问答题简答题：抗酸染色法主要用于鉴别什么细菌?

题型：填空题

如图，因为MN⊥AB，MO=NO，所以______是______的垂直平分线．

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题型：多项选择题案例分析题

患者，男性，41岁。因发现乙型肝炎表面抗原阳性15年，反复乏力、尿黄1年余，加重伴发热、恶心15天入院。入院查体：T38℃，P96次／分，R20次／分，BP120／76mmHg；皮肤巩膜重度黄染，可见肝掌及蜘蛛痣；右腋前线第4肋以下叩诊浊音，右下肺呼吸音消失；心界向左扩大，心率96次／分，律齐无杂音，心音有力；腹部膨隆，脐周有深压痛，无反跳痛及肌紧张。移动性浊音阳性。双下肢轻度水肿。扑翼样震颤阳性，计算力定向力减低，脑膜刺激征阴性，病理反射未引出。近1周来，患者睡眠明显增多，患者院外未进行任何有价值的检查。

化验结果回报：血常规WBC9.6×10⁹／L，N0.8，PLT70×10⁹／L；肝功：T－Bil468μmol／L，D－Bil238μmol／L，ALT208U／L，ALB26G／L，PTA37%，电解质和肾功正常。乙肝三抗示：HBsAg＋、HBeAg＋、HBcAg＋。该患者目前的诊断是什么（）

A.中枢神经系统感染

B.肝炎肝硬化

C.病毒性肝炎、乙型、慢性、重型

D.化脓性腹膜炎

E.右侧胸腔积液

F.高血压心脏病

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题型：阅读理解

阅读理解。

Su Hua is studying at Cambridge, UK. She has bought a bicycle and is worried about security (安全).
Her friend, Kate, found this article and sent it to her.

      Introduction
     A lot of crime is against bicycles. About 150,000 bicycles are stolen every year and most
are never found. You can prevent this happening by following a few careful steps. Basic Security
     Do not leave your bicycle in out-of-the-way places. Always lock your bicycle when you leave. Secure
it to lampposts or trees. Take off smaller parts and take them with you, for example lights and saddles (车座). Locks
     Get a good lock. There are many different types in the shops. Buy one that has been tested against
attack. Ask for a recommendation from a bike shop.

     Marking
     Security marking your bike can act as a deterrent to a thief. It can also help the police find your
bicycle. It should be clearly written and include your postcode and your house or flat number. This will
provide a simple way to identify your bicycle.
     Registration
     There are a number of companies who will security mark your bicycle for you. They will then put your
registration number and personal details on their computer database. Then if your bicycle is found it will
be easy to contact you.
     Finally Keep a record of the bicycle yourself: its make, model and registration number. You can even
take a photograph of it. This will prove the bicycle belongs to you.

1. Which part of the text gives you information on how to lock up your bicycle when you leave it?

A. Locks.
B. Marking.
C. Registration.
D. Basic Security.

2. The underlined phrase “act as a deterrent to a thief” means ______.

A. help you recognize your bike
B. help the police find your bicycle
C. stop someone stealing your bicycle
D. stop you worrying about your bike

3. The article advises you to keep a record of your bicycle _______.

A. in the bike shop and your computer
B. in the police station and a security company
C. in a security company and your university
D. by yourself and in a security company

4. The main purpose of this article is ______.

A. to tell you what to do if your bicycle is stolen
B. to suggest ways of keeping your bicycle safe
C. to give you advice on where to buy a good lock
D. to say why you shouldn’t keep your bicycle in a quiet place

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题型：单项选择题

与加密体制无关的概念是( )。

A．密钥空间