下列不符合脊椎结核X线诊断依据的是() A.椎体骨质破坏 B.椎间隙变窄 C.椎旁软

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问题:

下列不符合脊椎结核X线诊断依据的是()

A.椎体骨质破坏

B.椎间隙变窄

C.椎旁软组织肿胀

D.骨质增生硬化

E.椎体骨质变形

考点:中西医结合内科(医学高级)中西医结合内科综合练习中西医结合内科综合练习题库
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如图12-2-12甲所示,在某介质中波源A、B相距d=20 m,t=0时两者开始上下振动,A只振动了半个周期,B连续振动,所形成的波的传播速度都为v=1.0 m/s,开始阶段两波源的振动图象如图乙所示.

(1)定性画出t=14.3 s时A波所达位置一定区域内的实际波形;

(2)求时间t=16 s内从A发出的半波前进过程中所遇到的波峰个数.

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短文首字母填空:根据短文内容及首字母提示,填写所缺单词(10分)

Friends play an important part in our lives. We may have many friends, but we often don’t understand c  1   how we make friends. We may get on well with a

n  2  of people, but we usually make friends with a very few of them.

People use the word “friend” freely. Friends may have k  3__ each other since childhood or they may have recently met. In fact, people may have different k  4__  of friends such as school friends, work friends, or sports friends. A person may

c  5 different friends for different activities. If you play with s  6  on the playground, the person is your playmate. If you often play chess w  7 a friend, the person is your chess partner.

One may have many good friends and only one best friend. “Best friends” or “close friends” are u  8  two people who have known each other for a long time. A close friend is someone who is able to s   9  experiences, joys and sorrows with you. This is a person you can rely on(信赖)when you are in n  10 , and this is the person to whom you are willing to lend a helping hand.

Friendship is one of life’s greatest treasures.

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CAPL使用的软水的PH值为8.5~10.0。

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油浸式变压器(电抗器)精益化评价细则要求:本体和有载开关吸湿器应使用变色吸湿剂,受潮吸湿剂不应超过()。

A.1/6

B.1/5

C.1/3

D.2/3

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设有变电所的电信局,其高压引入的电压等级是多少伏?再降为多少伏?

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