Community cancer clusters are viewed
quite differently by citizen activists than by epidemiologists.
Environmentalists and concerned local residents, for instance, might immediately
suspect environmental radiation as the culprit when a high incidence of cancer
cases occurs near a nuclear facility. Epidemiologists, in contrast, would be
more likely to say that the incidences were "inconclusive" or the result of pure
chance. And when a breast cancer survivor, Lorraine Pace, mapped 20 breast
cancer cases occurring in her West Islip, Long Island, community, her
rudimentary research efforts were guided more by hope that a
specific environmental agent could be correlated with the cancers than by
scientific method. When epidemiologists study clusters of cancer
cases and other noncontagious conditions such as birth defects or miscarriage,
they tak A. help reduce the incidence of breast cancer in future generations B. improve her chances of surviving breast cancer C. determine the cause responsible for her own breast cancer case D. identify a particular cause for the breast cancer cases in West Islip
[单项选择]Without electricity, human life ______ quite different today. A. is B. will be C. would have been D. would be
[填空题]I went into a furniture shop in order to buy a picture. The sales man told me— "The picture is five times the cost of that ashtray, the chair is 30 times the cost of the ashtray, the table is 4 times the cost of the chair, you can buy the lot for £ 312." What was the price of the picture
[填空题]
Different countries and different races have different{{U}}
(11) {{/U}}. In China, it is important for the host to be attentive
towards the guest. The host shows this by{{U}} (12) {{/U}}that the
guest’s glass is always full and that there is always{{U}} (13)
{{/U}}food in his bowl. It is considered unnecessary to ask whether the
guest wants more. In contrast, in England the host may behave more informally.
The host{{U}} (14) {{/U}}places the food in the middle of the table and
tells the guest to help himself. It is considered unacceptable to{{U}} (15)
{{/U}}food or drink upon a guest, so the host never gives him anything
without first checking whether he wants it.
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