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Mobile Phones Mobile phones should carry a label if they proved to be a dangerous source of radiation, according to Robert Bell, a scientist. And no more mobile phone transmitter towers should be built until the long-term health effects of the electromagnetic radiation they emit are scientifically evaluated, he said. "Nobody&39;s going to drop dead overnight but we should be asking for more scientific information," Robert Bell said at a conference on the health effects of low-level radiation.(46) A report widely circulated among the public says that up to now scientists do not really know enough to guarantee there are no ill-effects on humans from electromagnetic radiation. According to Robert Bell, there are 3.3 million mobile phones in Australia alone and they are increasing by 2,000 a day.(47) As well, there are 2,000 transmitter towers around Australia, many in high density residential areas.(48)The electromagnetic radiation emitted from these towers may have already produced some harmful effects on the health of the residents nearby. Robert Bell suggests that until more research is completed the Government should ban construction of phone towers from within a 500 metre radius of school grounds, child care centres, hospitals, sports playing fields and residential areas with a high percentage of children.(49)He adds that there is also evidence that if cancer sufferers are subjected to electromagnetic waves the growth rate of the disease accelerates. (50)According to Robert Bell, it is reasonable for the major telephone companies to fund it. Besides, he also urges the Government to set up a wide-ranging inquiry into possible health effects. (46) A.He says there is emerging evidence that children absorb low-level radiation at a rate more than three times that of adults.B.By the year 2000 it is estimated that Australia will have 8 million mobile phones: nearly one for every two people.C."If mobile phones are found to be dangerous, they should carry a warning label until proper shields can be devised," he said.D.Then who finances the research?E.For example, Telstra, Optus and Vodaphone build their towers where it is geographically suitable to them and disregard the need of the community.F.The conclusion is that mobile phones brings more harm than benefit. (47) A.He says there is emerging evidence that children absorb low-level radiation at a rate more than three times that of adults.B.By the year 2000 it is estimated that Australia will have 8 million mobile phones: nearly one for every two people.C."If mobile phones are found to be dangerous, they should carry a warning label until proper shields can be devised," he said.D.Then who finances the research?E.For example, Telstra, Optus and Vodaphone build their towers where it is geographically suitable to them and disregard the need of the community.F.The conclusion is that mobile phones brings more harm than benefit. (48) A.He says there is emerging evidence that children absorb low-level radiation at a rate more than three times that of adults.B.By the year 2000 it is estimated that Australia will have 8 million mobile phones: nearly one for every two people.C."If mobile phones are found to be dangerous, they should carry a warning label until proper shields can be devised," he said.D.Then who finances the research?E.For example, Telstra, Optus and Vodaphone build their towers where it is geographically suitable to them and disregard the need of the community.F.The conclusion is that mobile phones brings more harm than benefit. (49) A.He says there is emerging evidence that children absorb low-level radiation at a rate more than three times that of adults.B.By the year 2000 it is estimated that Australia will have 8 million mobile phones: nearly one for every two people.C."If mobile phones are found to be dangerous, they should carry a warning label until proper shields can be devised," he said.D.Then who finances the research?E.For example, Telstra, Optus and Vodaphone build their towers where it is geographically suitable to them and disregard the need of the community.F.The conclusion is that mobile phones brings more harm than benefit. (50) A.He says there is emerging evidence that children absorb low-level radiation at a rate more than three times that of adults.B.By the year 2000 it is estimated that Australia will have 8 million mobile phones: nearly one for every two people.C."If mobile phones are found to be dangerous, they should carry a warning label until proper shields can be devised," he said.D.Then who finances the research?E.For example, Telstra, Optus and Vodaphone build their towers where it is geographically suitable to them and disregard the need of the community.F.The conclusion is that mobile phones brings more harm than benefit.
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【判断题】建设资源节约型社会的核心是加强节能减排和生态保护工作。
A.
正确
B.
错误
【多选题】实践的基本特征有:
A.
直接现实性
B.
自觉能动性
C.
社会历史性
【单选题】对于相律,下列理解中正确的是
A.
相律不适用于有化学反应的多相体系
B.
影响相平衡只有强度因素,与容量因素无关
C.
自由度数为零时,意味着体系的状态不变
D.
多相体系也可出现 P > C +2的状态
【多选题】实践的基本特征有()
A.
直接现实性
B.
自觉能动性
C.
社会历史性
D.
创新性
【判断题】开关、按钮一般接在PLC的输出端( )。
A.
正确
B.
错误
【单选题】—How long can I ______ the book, Mr. Black? — Two weeks.
A.
borrow
B.
lend
C.
have
D.
keep
【判断题】建设资源节约型社会的核心是加强节能减排和生态保护工作。
A.
正确
B.
错误
【多选题】实践的基本特征有()
A.
直接现实性
B.
自觉能动性
C.
创新性
D.
社会历史性
【单选题】–How long has Mr. Liu taught English?     --- _______ 1998.
A.
Since
B.
In
C.
For
D.
At
【单选题】对于相律,下列理解中正确的是:
A.
相律不适用于有化学反应的多相体系
B.
影响相平衡只有强度因素,与容量因素无关
C.
自由度数为零时,意味着体系的状态不变
D.
多相体系也可出现自由度小于0的状态
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