题目内容
（请给出正确答案）
A.more; less
B.less; more
C.less; less
D.more; more
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更多“1. I’m very fat. I need to eat ________ and exercise __________.”相关的问题
A、Cheng Yanqiu
B、Shang Xiaoyun
C、Xun Huisheng
D、Mei Lanfang
A、1.1 N∙m
B、11 N∙m
C、7.2 N∙m
D、1.4 N∙m
E、14 N∙m
F、3.4 N∙m
A、Underwater weighing
B、Air displacement
C、Skinfold measurements
D、DEXA
Can exercise be a bad thing？
Can exercise be a bad thing ？ Sudden death during or soon after strenuous exertion in the squash court or on the army training grounds, is not unheard of. 51 trained marathon runners are not immune to fatal heart attacks. But no one knows just 52 common these sudden deaths linked to exercise are. The registration and investigation of such 53 is very patchy ; only a national survey could determine the true 54 of sudden death in sports. But the climate of medical opinion is shifting in 55 of exercise, for the person recovering from a heart attack as 56 as the average lazy individual. Training can help the victim of a heart attack by lowering the 57 of oxygen the heart needs at any given level of work 58 the patient can do more before reaching the point where chest pains indicate a heart starved of oxygen. The question is, should middle-aged people 59 .particular be screened for signs of heart disease before 60 vigorous exercise ？
Most cases of sudden death in sport are caused by lethal arrhythmias in the beating of the heart, often in people 61 undiagn0sed coronary heart disease, In North America 62 over 35 is advised to have a physical check-up and even an exercise electrocardiogram. The British, on the whole, think all this testing is unnecessary. Not many people die from exercise, 63 , and ECGs (心电图 ) are notoriously inaccurate. However, two medical cardiologists at the Victoria Infirmary in Glasgow, advocate screening by exercise ECG for people over 40, or younger people 64 at risk of developing coronary heart disease. Individuals showing a particular abnormality in their ECGs 65 , they say, a 10 to 20 times greater risk of subsequently developing signs of coronary heart disease, or of sudden death.
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A.Then
B.Though
C.Since
D.Even
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