The wonders which medical workers have already brought about in the diagnosis(诊断) and treatment of disease suggest that a time may come when the physician will be able to analyze most illnesses as soon as they start, and cure them before damage results. How soon this "golden age of healing" arrives will depend greatly on how close is the collaboration between research workers in medicine and those who work in the sciences on which medicine depends. The physician has long relied on the chemist for curative drugs, and on the physicist for diagnostic instruments and healing rays. In the one field new materials and in the other new devices are being produced in increasing numbers, helping to make imminent new miracles of medicine.
The X-ray and the microscope have extended the vision of the medical observer until he can see through ten inches of living flesh or into a single tissue cell, yet similar but much more powerful tools still await development. Modern electrical devices enable him to listen to faint murmurings of the life processes, or to measure feeble currents arising from heart and brain and nerve; yet electrical body measurements are but little understood. Now newly discovered atomic rays are being brought to help him destroy malignant invaders of the human system, and there is every reason to believe that even more curative rays await discovery.

Which of the following statements is true()

All subjects were free of cancer at enrollment between 1992 and 1998, but (53) an average follow-up of almost 5 years 1,329 bowel cancers had been reported.
The subsequent analysis, published in the Journal of the National Cancer Institute, confirms the long-held suspicion (54) high intakes (纳入量) of red meat are associated with increased bowel (55) risk.After taking into consideration factors like age, sex, height, weight, energy intake, physical activity, smoking, and alcohol consumption, the investigators found that bowel cancer was (56) with intake of red and processed meat but not chicken.
Risk of bowel cancer dropped with increasing intake of fish. Eating more than 80 grams a day of fish was associated (57) a 31 percent reduction in risk compared with eating less than 10 grams a (58) .
Subjects with high red meat and low fish intake were at 63 percent higher risk of bowel cancer compared with subjects with low red meat and high fish (59) . In addition, the risk of developing the disease was increased for (60) people who ate a low fibre diet.
Sheila Bingham, study investigator at the UK’s Medical Research Council nutrition unit, said: "People have suspected for some time that high levels of red and processed meat (61) risk of bowel cancer, but this is one of the largest studies worldwide and the first from Europe of this type to show a (62) relationship."
She added in a statement: "The overall picture is very consistent for red and processed meat and fibre across all the (63) populations studied."
Study coordinator, Elio Riboli, of the World Health Organisation International Agency for Research into Cancer, said: "Other risk factors for (64) cancer include obesity (肥胖) and lack of physical activity. Smoking and excess alcohol may also play a (65) . These factors were all taken into account in the analysis.\