对管电压选择的叙述,错误的是() A.管电压表示X线的穿透力 B.管电压控制照片影像

题型:单项选择题 A1/A2型题

问题:

对管电压选择的叙述,错误的是()

A.管电压表示X线的穿透力

B.管电压控制照片影像对比度

C.管电压升高,摄影条件宽容度增大

D.高千伏摄影,光电效应增加

E.高千伏摄影,在有效消除散射线情况下,影像细节可见度增大

考点:放射医学技师放射技师基础知识放射技师基础知识模拟试卷三
题型:单项选择题 A1/A2型题

夏季,某牛场1/4的牛单眼或双眼羞明、流泪、眼睑疫挛,眼分泌物增多;角膜周边可见新生血管,角膜浑浊,严重者出现角膜溃疡。体温40.5~41.5°C,精神沉郁,食欲不振。

确诊该病最好采用()

A.检眼镜检查

B.角膜成像检查

C.微生物学检查

D.阿托品散瞳检査

E.荧光素点眼试验

题型:单项选择题 A1/A2型题

阅读下面两篇短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

I remember the exact moment I learned the principle of preparing for luck.

I was on the wrestling team. Now, if there’s one thing I can tell you about any sport, it is that wrestling is probably the sport that has the least   31  .There are only two people out on the mat, so you cannot   32  it on your teammates or your coach. And guess what? There is no   33    because we do the whole thing indoors, so you can’t say, “It was raining” or “It was snowing.” It makes   34  to say wrestling is the sport with the least luck.

On our team were two world champions; one of them had been a world champion five times. We   35  had five people who were national champions. One of them was a guy   36  the name of John.

John had never been   37  in any high school wrestling competition that I could remember, 38  he was a national champion. There was nobody locally who could touch him.

One day, we   39  a match with our biggest opponent(对手). John went out on the mat, and about a minute and 30 seconds into the match he tried to make a particular   40  He rolled over, and his opponent  41  him halfway through his roll. He waspinned(压住) 42 !

The match was over.

I remember on the way home, one of our teammates tried to  43  John by saying, “Oh, he just got lucky.” John said, “That’s so stupid. The 44  presented itself, and he just took advantage of it.”

We used to have this big   45  in our wrestling room that the coach had put there: “Luck is what happens when opportunity meets   46 .”

John’s opponent was prepared to make use of this opportunity. The possibility of beating John was not   47  and he knew it. But he waited for the  48   opportunity to present itself, and he defeated and pinned a five-time national champion.

In other words, the real  49  is “Be prepared!” It’s not just finding the opportunity; you have to be prepared to   50  it.

小题1:.  

A.luck

B.risk

C.difficulty

D.opportunity小题2:.   

A.accuse

B.blame

C.doubt

D.keep小题3:.   

A.stress

B.injury

C.change

D.weather小题4:.   

A.reason

B.sure

C.safe

D.sense小题5:.  .

A.also

B.even

C.too

D.once小题6:.  

A.under

B.for

C.in

D.by小题7:.   

A.hurt

B.met

C.trained

D.defeated小题8:.   

A.although

B.as

C.yet

D.until小题9:.   

A.went for

B.waited for

C.fought for

D.played for小题10:.   

A.act

B.step

C.task

D.move小题11:.  

A.fixed

B.threw

C.caught

D.carried小题12:.   

A.accidentally

B.fortunately

C.unfairly

D.immediately小题13:.   

A.control

B.comfort

C.convince

D.forgive小题14:.   

A.success

B.moment

C.opportunity

D.situation小题15:.  

A.warning

B.sign

C.sentence

D.note小题16:.   

A.occasion

B.challenge

C.time

D.preparation小题17:.   

A.obvious

B.strong

C.little

D.slight小题18:.   

A.equal

B.exact

C.rest

D.right小题19:.  

A.message

B.theme

C.key

D.suggestion小题20:.  .

A.receive

B.follow

C.seize

D.save

题型:单项选择题 A1/A2型题

太阳核心的温度高达_____________℃。在太阳内部,氢原子核在超高温下发生__________,释放出巨大的核能。

题型:单项选择题 A1/A2型题

A.甲乙企业同时

B.乙企业

C.甲乙企业先后

D.甲企业

题型:单项选择题 A1/A2型题

按照我国《婚姻法》中的亲等计算法,叔、伯与侄子之间属于()

A.二代旁系血亲

B.三代直系血亲

C.三代旁系血亲

D.四代旁系血亲

更多题库