问题 选择题

下列属于人体第三道防线的是(  )

A.皮肤

B.白细胞

C.淋巴细胞

D.肝脏

答案

人体的三道防线是:第一道防线是皮肤、粘膜和纤毛.功能是阻挡、杀菌和清扫异物;第二道防线是体液中的杀菌物质和吞噬细胞,功能是溶解、吞噬病原体;第三道防线是免疫器官和淋巴细胞功能是能产生抗体抵抗抗原(侵入人体内的病原体),白细胞是第二道防线,肝脏是人体内最大的消化器官,最大的消化腺.

故选:C

填空题

In its more extreme forms persecution mania is a recognized

form of insanity. Some people imagine that others wish to kill

them, or imprison them, or to do them some other grave injury.

Often the wish to protect themselves from imaginary persecutors   (1)______

leads them into acts of violence which make it necessary to restrain

their liberty. This, like many other forms of insanity, is

only an exaggeration of tendency not at all uncommon among      (2)______

people who count as normal. I do not propose to discuss

the extreme forms, that are a matter for a psychiatrist.       (3)______

It is the milder forms that I wish to consider, since they      (4)______

are a very frequent cause of unhappiness, and because, not having

gone much far as to produce definite insanity, they          (5)______

are still capable of being dealt by the patient himself,       (6)______

provided he can be induced to diagnose his trouble

right and to see that its origin lies within himself and        (7)______

not in the supposed hostility and unkindness of others.        (8)______

We are all familiar with the type of person, man or woman,

who, according to his own account, is perpetually the victim

of ingratitude, unkindness, and treachery. People of such kind     (9)______

are often extraordinarily plausible, and secure warm sympathy

from those who have not known them long. There

is, as a rule, nothing inherently improbable about every separate    (10)______

story that they relate.

8()

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