有关类风湿关节炎早期MRI表现中,下列哪项不正确()A.滑膜增厚 B.滑膜强化 C.

题型:单项选择题

问题:

有关类风湿关节炎早期MRI表现中,下列哪项不正确()

A.滑膜增厚

B.滑膜强化

C.T2加权,滑膜信号增高

D.关节积液

E.关节面软骨消失

考点:医学影像技术(医学高级)MRIMRI题库
题型:单项选择题

One day, there was a blind man called John sitting on the bench(长条椅)with a hat by his feet and a sign that read,“I am blind. Please help me.”

A creative publicist(广告员) named Tom was walking by the blind man and stopped to see that the man only had a few coins in his hat. He put a few of his own coins in the hat. Without asking for permission, he took the sign, turned it around and wrote a new message. Then he put the sign by the feet of the blind man, and left.

Later that afternoon the publicist returned to the blind man and noticed that his hat was almost full of bills and coins. The blind man recognized(认出,识别出)his footsteps and asked if it was he who had changed his sign. He also wanted to know what the man wrote on it.

The publicist said,“I just wrote the message a little differently.”He smiled and went on his way.

The new sign read,“Spring has come, but I can’t see anything.”

小题1:What’s the blind man’s name?

A.Tom.

B.John.

C.Tony.

D.Sorry, I don’t know.小题2:Who wrote a new message?

A.The blind man.

B.The teacher.

C.The publicist.

D.The farmer.小题3:How did the blind man recognize the publicist?

A.By his sign.

B.By his footsteps.

C.By his voice.

D.By his coins.小题4:When did the story happen?

A.In spring.

B.In summer.

C.In autumn.

D.In winter.小题5:What can we learn from the passage?

A.Publicists are always friendly and helpful.

B.We can get more money by changing a sign.

C.The blind man was very stupid, so he had little money.

D.The power(力量)of language is great.

题型:单项选择题
设f(x)是定义在(0,+∞)上的增函数,且f(
x
y
)=f(x)-f(y)
,若f(2)=1,则f(4)=______.
题型:单项选择题

药物分析中有时要求避光操作,以免影响测定结果,是因为药物发生

A.光分解反应

B.光聚合反应

C.光氧化反应

D.光还原反应

E.光催化反应

题型:单项选择题

二氧化碳气瓶外表涂()。

题型:单项选择题

周人主要靠武力征服商朝。

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