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Radiation exposure should be______.
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更多“Radiation exposure should be______.”相关的问题
第1题
Air pollution can be as harmful to one\\\\\\\'s health___________
A．on the downwind side
B．during rush hours
C．in spring and autumn
D．to toxic air
E．between autumn and winter
F．as exposure to nuclear radiation
第2题
It's wise to stay away from heavy traffic____________
A．on the downwind side
B．during rush hours
C．in spring and autumn
D．to toxic air
E．between autumn and winter
F．as exposure to nuclear radiation
第3题
A. during rush hours
B. in spring and autumn
C. to toxic air
D. between autumn and winter
E. as exposure to nuclear radiation
F. on the downwind side
Air pollution can be as harmful to one's health ______.
第4题
27 Air pollution can be as harmful to one's health___________
28 Traveling on an underground train can reduce exposure___________
29 Pollution levels are lower__________
30 It's wise to stay away from heavy traffic____________
A on the downwind side
B during rush hours
C in spring and autumn
D to toxic air
E between autumn and winter
F as exposure to nuclear radiation
第5题
Screen Test
？？ 1.Every year millions of women are screened with X-rays to pick up signs ofbreast cancer. If this happens early enough, the disease can often be treated successfully.According to a survey Australia, Canada, the US and Spain, screen women under 50.？？
？？ 2. Butthe medical benefits of screening these younger women are controversial, partlybecause the radiation brings a small risk of inducing cancer. Also, youngerwomen must be given higher doses of X-rays because their breast tissue isdenser.？？
？？ 3.Researchers at the Polytechnic University of Valencia analysed the effect ofscreening more than 160,000 women at 11 local clinics. After estimating thewomen&39;s cumulative dose of radiation, they used two models to calculate thenumber of extra cancers this would cause.？？
？？ 4. Themathematical model recommended by Britain&39;s National Radiological ProtectionBoard (NRPB) predicted that the screening programme would cause 36 cancers perioo,ooo women， 18 0f them fatal. The model preferred by the UN Scientific Committee onthe Effects of Atomic Radiation led to a lower figure of 20 cancers.？？
？？ 5. Theresearchers argue that the level of radiation-induced cancers is"not verysignificant" com- pared to the far larger number of cancers that arediscovered and treated. The Valenciaprogramme, they say, detects between 300 and 450 cases of breast cancer inevery 100,000 women screened.
？？ 6. Butthey point out that the risk of women contracting can？？cer from radiation couldbe reduced by between 40 and 80 percent if screening began at 50 instead of 45,because they would be exposed to less radiation. The results of their study,they suggest, could help "optimize the technique" for breast cancerscreening.
？？7."There is a trade-off between the diagnostic benefits of breast screeningand its ri？？sks," admits Michael Clark of the NRPB. But he warns that thestudy should be interpreted with caution. "On the basis of the currentdata, for every 10 cancers successfully detected and prevented there is a riskof causing one later in life. That&39;s why radiation exposure should be minimizedin any screening pro- gramme. "
？？？？Paragraph 2 ___
？？
？？Paragraph 3 ______？？
？？Paragraph 4 _____？？
？？Paragraph 5 ________？？
？？Early discovery of breast cancer may ________？？
？？Advantages of screening women under 50 are _________？？
？？Delaying the age at which screening starts may _______？？
？？Radiation exposure should be _________？？
请帮忙给出每个问题的正确答案和分析，谢谢！
第6题
Radiation exposure should be________.
A．be costly
B．be harmful
C．save a life
D．still open to debate
E．reduce the risk of radiation triggering a cancer
F．reduced to the minimum
第7题
Screen Test
1．Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens early enough, the disease can often be treated successfully. According to a survey published last year，21 countries have screening programmes. Nine of them, including Australia, Canada, the US and Spain, screen women under 50.
2．But the medical benefits of screening these younger women are controversial，partly because the radiation brings a small risk of inducing cancer. Also, younger women must be given higher doses of X-rays because their breast tissue is denser.
3．Researchers at the Polytechnic University of Valencia analysed the effect of screening more than 160,000 women at 11 local clinics. After estimating the women's cumulative dose of radiation, they used two models to calculate the number of extra cancers this would cause.
4．The mathematical model recommended by Britain's National Radiological Protection Board(NR- PB)predicted that the screening programme would cause 36 cancers per 100,000 women,18 of them fatal. The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation led to a lower
figure of 20 cancers.
5．The researchers argue that the level of radiation-induced cancers is "not very significant" compared to the far larger number of cancers that are discovered and treated. The Valencia programme，they say，detects between 300 and 450 cases of breast cancer in every 100,000 women screened.
6．But they point out that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45,because they would be exposed to less radiation. The results of their study, they suggest, could help "optimize the technique" for breast cancer screening.
7．"There is a trade-off between the diagnostic benefits of breast screening and its risks." admits Michael Clark of the NRPB. But he warns that the study should be interpreted with caution."0n the basis of the current data, for every 10 cancers successfully detected and prevented there is a risk of causing one later in life. That's why radiation exposure should be minimized in any screening programme.
A．Risk of Screening to Younger Women
B．Investigating the Effect Of Screening
C．Effects Predicted by Two Different Models
D．Treatment of Cancers
E．Minimizing of Radiation Exposure
F．Factors That Trigger Cancers
Paragraph 2______
第8题
Screen Test
1. Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens early enough, the disease can often be. treated successfully. According to a survey published last year, 21 countries have screening programmes. Nine of them, including Australia, Canada, the US and Spain, screen women under 50.
2. But the medical benefits of screening these younger women are controversial, partly because the radiation brings a small risk of inducing cancer. Also, younger women must be given higher doses of X-rays because their breast tissue is denser.
3. Researchers at the Polytechnic University of Valencia analysed the effect of screening more than 160,000 women at 11 local clinics. After estimating the women's cumulative dose of radiation, they used two models to calculate the number of extra cancers this would cause.
4. The mathematical model recommended by Britain's National Radiological Protection Board (NRPB) predicted that the screening programme would cause 36 cancers per 100,000 women, 18 of them fatal. The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation led to a lower figure of 20 cancers.
5. The researchers argue that the level of radiation-induced cancers is "not very significant" compared to the far larger number of cancers that are discovered and treated. The Valencia programme, they say, detects between 300 and 450 cases of breast cancer in every 100,000 women screened.
6. But they point out that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45, because they would be exposed to less radiation. The results of their study, they suggest, could help "optimise the technique" for breast cancer screening.
7. "There is a trade-off between the diagnostic benefits of breast screening and its risks," admits Michael Clark of the NRPB. But he warns that the study should be interpreted with caution. "On the basis of the current data, for every 10 cancers successfully detected and prevented there is a risk of causing one later in life. That's why radiation exposure should be minimized in any screening programme."
A. Risk of Screening to Younger Women
B. Investigating the Effect of Screening
C. Effects Predicted by Two Different Models
D. Treatment of Cancers
E. Minimizing of Radiation Exposure
F. Factors That Trigger Cancers
Paragraph 2______
第9题
We know from the passage that ________.
A) exposure to even tiny amounts of radiation is fatal
B) the effect of exposure to radiation is slow in coming
C) radiation is avoidable in space exploration
D) astronauts in spacesuits needn’t worry about radiation damage
第10题
Radiation exposure should be ___________. 查看材料
A.be costly
B.harmful
C.save a life
D.still open to debate
E.reduce the risk of radiation triggering a cancer
F.reduced to the minimum
