问题 单项选择题

下列与超急性排斥反应无关的情况是()

A.多次输血

B.真菌感染

C.妊娠

D.再次移植

E.长期血液透析

答案

参考答案:B

解析:同种移植中,超急性排斥反应发生于移植术前反复输血、多次妊娠、长期血液透析或再次移植的受者。异种移植中,超急性排斥反应发生于体内预存抗异种抗原天然抗体的受者。

阅读理解

Prepare: Plan ahead and think about what you are going to say. In the words of Mark Twain, it usually takes you more than three weeks to prepare for it.

Know your subject: Always make sure that you know the subject and have background information at hand for question time.

Know you audience: Find out who you will be addressing so that you can tailor(适合) your comments accordingly.

Make a point: Keep your speech short and brief and have a few clear points that you need to convey(传达).

Practice: Never learn your speech by heart as your speech will become stilted, but do practice it a few times in front of the mirror, your parents or your dog.

Eye contact: If the thought of looking into a sea of faces scares you, adjust your gaze(注视)regularly at different points in the room to create the same effect.

First impressions: Your first impression is important when making a public presentation. Find out about dress codes(准则) at the place so that you look your best and, if possible, check the microphone beforehand to ensure you know how to use it.

Get help: If public presentations are a major part of your life, read up on the art of speech---writing and delivery to improve your skills.

小题1:The advice benefits (有益于)____________________.

A.teachers

B.actors

C.speechmakers

D.spokesmen小题2:Knowing your subject helps you __________.

A.make a perfect speech

B.make better answers when asked questions about the subject.

C.keep a clear head

D.attract people’s attention小题3: The underlined word “stilted” probable means ________ here.

A.unnatural

B.unnecessary

C.unpleasant

D.undeveloped小题4:If asked for more advice besides what has been mentioned in the text, you may suggest ______.

A.eye contact with the audience

B.proper clothes

C.proper tones and body languages

D.more practice

填空题