具备法人资格的合作企业一般设立董事会作为权力机构；不具备法人资格的合作企业一般设立联合管理委员会作为

A．good

B．bad

C．helpful

D．enough

______ being fun and good exercise, swimming is a very useful skill.

A．Rather than

B．Apart from

C．Instead of

D．Owing to

______ being fun and good exercise, swimming is a very useful skill.

A．Rather than

B．Apart from

C．Instead of

D．Owing to

______ being fun and good exercise, swimming is a very useful skill.

A．Rather than

B．Apart from

C．Instead of

D．Owing to

回答题。

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

The exercise that the researchers tried ontheir test subjects was

A．walking briskly for thirtyminutes three times a week．

B．cycling six times a week forthree months．

C．swimming twice a day．

D．running once a day．

It can be inferred from the last paragraph that______.

A．too much exercise may actually be bad for health

B．experts' advice cannot be always followed

C．past generations longed for gym facilities we have today

D．moderate daily-life exercise can make us leaner and fitter

It can be inferred from the last paragraph that______.

A．too much exercise may actually be bad for health

B．experts' advice cannot be always followed

C．past generations longed for gym facilities we have today

D．moderate daily-life exercise can make us leaner and fitter

It can be inferred from the passage that______.

A．the best way to overcome a bad mood is to talk to oneself

B．when one is in a bad mood, he or she may not work very efficiently

C．some drugs are more effective than physical exercise

D．a person can make a big profit if he is in a good mood

It can be inferred from the passage that______.

A．the best way to overcome a bad mood is to talk to oneself

B．when one is in a bad mood, he or she may not work very efficiently

C．some drugs are more effective than physical exercise

D．a person can make a big profit if he is in a good mood