影响辐射损伤的因素是A.剂量率 B.照射方式 C.照射部位和范围 D.辐射线性质

题型:多项选择题

问题:

影响辐射损伤的因素是

A.剂量率

B.照射方式

C.照射部位和范围

D.辐射线性质

E.辐射线剂量

考点:医技考试放射医学技士放射医学技士初级资格考试试题
题型:多项选择题
阅读理解。
    Many young people want to be pop stars. Pop stars are rich. Many people think they are leading a happy and
easy life. In fact, they have very hard lives. They spend much of their time on travel. Sometimes the travel is
interesting, but in most time it is boring to pop stars. The following chart is a day's life of a pop star.

Feb. 10, 2007

5:00 Woke up and had breakfast in the hotel, packed bags. Took taxi to airport.
7:30 Plane took off half an hour later than usual for the bad weather.
8:30 Plane landed. Waited for luggage for half an hour. Signed for fans at the airport.
9:45 Arrived at the hotel and had a short rest.
10:00 Started out to attend the meeting with fans and gave an interview to the local reporters.
11:00 Went to radio station to attend the live show.
12:00 Had lunch with local producer.
13:00  Went to theatre and prepared for the night's show. The lighting of the theatre was
good, but the band did poorly.
17:00 Back to hotel. Tried to have a rest. Still worried about the band.
18:00 Had supper, but eat little.
18:30 Went to theatre again and got ready for show.
19:00 Sang very well, and audience gave a warm welcome. The band improved a little.
22:00 Show was over. Very tired from it.
23:00 Back to hotel. Took a bath. Too excited to sleep, so watched TV
0:00 Fell asleep, with TV on.
1. According to the chart, the pop star was a ________.

[ ]

A. singer
B. dancer
C. player
D. pianist.
2. According to his plan, his plane should have taken off at _______.

[ ]

A. 6:30
B. 7:00
C. 7:30
D. 8:00
3. How long did he spend on his way to the place for his performance?

[ ]

A. One hour.
B. Two hours.
C. four hours and three quarters.
D. One hour and a quarter.
4. At the radio station, the pop star ________.

[ ]

A. showed fans how to become famous
B. gave a performance on the air
C. met fans and signed for them
D. told people how he lived his life
5. From this passage we get to know that ________.

[ ]

A. not all people like pop stars
B. pop stars have their own bands
C. fans are troublesome for pop stars
D. to be a pop star is not all fun
题型:多项选择题

书面表达。

请你谈谈轿车大量进入家庭后,对家庭、环境和经济可能产生的影响。

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题型:多项选择题

海顿有“()”的美誉,首先用管弦乐来演奏奏鸣曲,并使之规范化,使“交响曲”成为音乐主流。

题型:多项选择题

“韦编三绝办是说孔子读《易》次数之多,竟把编联简策的编绳翻断了多次.此语最早见于《史记·孔子世家》.对“韦编”的“韦”如何理解新版《辞海》的解释是:“韦,熟牛皮.古代用竹简写书,用皮绳编缀,故日韦编.”这种说法其实是错误的.其一,现代的形声字古代常常写作假借字,汉代文献中此例不胜枚举.汉代许慎《说文》有“经,织从丝也".许慎所用的“从”字,即今之形声字“纵”字的假借字.我们既知纵字在汉代实写作 “从”,那么我们把汉人(司马迁)写的“韦编”读作“纬编”,是合乎汉人用字常理的.纬编即编联简策的纬绳.因为古人常把纵横称作经纬,所以《说文》又称“纬,织衡丝也”.简书的竹简是纵向排列的,犹如织布帛的经线,编联简策的组绳则是横向编联的,犹如织布帛的纬线.据此,把横向编联简策的组绳称作“纬绳”、“韦编”是理所当然的.其二,古代简书并不一定是用皮绳编缀的.陈梦家在《汉简缀述》中写道:“所用以编简札为册者,多为丝纶,有时写作‘绳’,有时写作‘编’.苟勋《穆天子传》谓汲郡魏家所出‘皆竹简素丝编’,《南齐书·文惠太子传》记襄阳古家所出《考工记扩竹简书,青丝编……’居延出土汉简册,则为麻绳.”毫无疑义,所谓“素丝编”、“青丝编"都是指的丝绳.出土简册,则木简仅见用麻绳.除了"韦编三绝"的"韦"被释为皮绳外,尚不见任何关于用皮绳编联简册的记载和实物.

作者认为《辞海》对“韦编三绝”的“韦”字解释有误,不能作为这一观点依据的一项是______.

A.把横向编联简册的组绳称作“纬绳”、“韦编”是理所当然的

B.孔子读《易》,竟然多次翻断了简策的编绳

C.既然“纵”字在汉代实写作“从",那么把“韦编”读作“纬编”是合理的

D.因为古人常把纵横称作经纬,纬(韦)编即编联简策的纬绳

题型:多项选择题

输入CDU—C的信号强度为20W,若CDU—C的衰耗为3db,问输出功率为多少?()

A、5W

B、15W

C、10W

D、1W

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