[单项选择]Why are mobile phones popular in China, according to the speaker a. They are considered as fashionable items. b. They keep people closer to each other. c. They are more convenient to users than fixed phones. d. They are considered time-saving devices.

[单项选择]Why are mobile phones popular in China, according to the speaker
A. They are considered as fashionable items.
B. They keep people closer to each other.
C. They are more convenient to users than fixed phones.
D. They are considered time-saving devices.

[填空题]
Mobile phones should carry a label if they proved1 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’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.

[填空题]
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 is 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)