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A、are easily predicted by competent economists.
B、have never occurred very close together.
C、can only be seen as changes in real GDP.
D、None of the above is correct.
| 语法填空。 Experts say there are several ways to deal with stress. They include deep breathing and a method of guided thought called meditation. They also include exercise, eating healthy foods, getting enough rest and balancing the time1(spend)working and playing. Exercise is one of2most effective stress-reduction measures. Running, walking or playing sports causes physical changes3make you feel better. Exercise also improves the body's defense system4 disease. And studies have found that5helps protect against a decrease in mental ability. Doctors say deep, slow breathing is also helpful. Many6(medicine ) studies have shown that clearing the mind through quiet meditation7(help ) you become calm. This causes lower blood pressure, reduces muscle tension8decreases heart rate. Experts also say keeping stress to yourself can make problems9(bad ). Researchers have linked the failure10identify and express emotions to many health conditions. These include eating disorders, fear disorders and high blood pressure. (160) |
B．a wild animal from Africa that looks like a horse with broad dark brown and white stripes on its body
C．a safe place across a road for zebras to walk across the road
D．a safe place across a road for older people to rest in
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