31. Too much salt raises one’s risk for _________.
A. strokes
B. heart attacks
C. high blood pressure
D. all of the above
32. The recommended sodium intake for most U. S. adults is ________.
A. closer t0 3,500 mg per day
B. as much as 3,436 mg per day
C. no more than l,500 mg per day
D. less than 3,500 mg per day
33. A heart-healthy diet is one that contains ________.
A. a low level of sodium
B. a lot of potassium and calcium
C. no salt at all
D. both A and B
34. Nearly 70 percent of U. S. adults are in high-risk groups,________.
A. for they are inactive
B. for they are black or over the age of 40
C. for they frequently eat out
D. for they consume sodium every day
35. Packaged, processed and restaurant foods are known to be
A. good in taste
B. low in price
C. poor in nutrition
D. high in salt
参考答案:
31.D 32.C 33.D 34.B 35.D