2011职称英语卫生类(A级)考试真题解析
2011-12-07 11:03:50 来源：作者：评论：0 点击：

第4部分：阅读理解（第31～45题，每题3分，共45分）
下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。

31．What is used to describe the communication network consisting of cells in the immune system？
A．The immune system’s memory．
B．Immune troops eliminating intruders．
C．Bees flying around a hive．
D．A sea of microbes．
32．The immune cells and other cells in the body coexist peaceably in a state known as
A．self-tolerance
B．balance
C．harmony
D．tolerance
33．How do the immune cells recognize an antigen as“foreign”or“nonself”？
A．Through an allergic response．
B．Through blood type．
C．Through characteristic shapes on the antigen surface．
D．Through fine hairs protruding from the antigen surface．
34．Which of the following statements is true？
A．Allergens are usually harmful substances．
B．Antigens can trigger an immune response．
C．People with antigens do not suffer from obvious responses．
D．There is no difference between an antigen and an allergen．
35．Which of the following best expresses the main idea of this passage？
A．An antigen is any substance that triggers an immune response．
B．One of the immune system’s primary functions is the allergic response．
C．The human body is an appropriate habitat for microbes．
D．The basic function of the immune system is to distinguish between self and nonself

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2011职称英语卫生类(A级)考试真题解析
2011-12-07 11:03:50 来源：作者：评论：0 点击：

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2011职称英语卫生类(A级)考试真题解析
2011-12-07 11:03:50 来源：作者：评论：0 点击：