Like microwave ovens, food irradiation has aroused apprehension and misunderstanding. Yet it has been scrutinized more thoroughly than other methods of food treatment that we have come to regard as safe, and it appears to be a method whose time has come.
1.Cobalt 60, besides irradiating food, is also employed to ___.
A.detect metallic flaws
B.run a nuclear reactor
C.cure cancer patients
D.strengthen concrete walls
2.Gamma rays used to irradiate food ___.
A.are generally not strong enough to destroy contaminating organisms
B.do not bring about significant changes in the food itself
C.may destroy some of the nutrients in the food
D.should be submitted to FDA for approval
3.Irradiated food ___.
A.certainly loses its nutritive value
B.maintains its nutritive value no different from the nonirradiated
C.keeps its nutritive value better than canned food
D.is recommended as the best of all preserved foods
4.With cases of food poisoning increasing, ___.
A.food irradiation should be carried out with care
B.it is more urgent to irradiate foods
C.medical researches into treatment of the diseased should be strengthened
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