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发布时间:2015-08-20 15:09:44
单选题
1.【完成句子】 Recent studies showed that the average high school student spends fifteen to thirty hours a week watching television and only two hours a week in organized play or exercise. That is one reason why one-third of the 200,000 pupils tested for the President's Council on Physical Fitness failed a simple test of strength,stamina,and flexibility. Some of the boys and girls could not raise themselves to a sitting position without using their hands!
Some people have difficulties in standing up due to _________.
A.be overweight
B.lacking adequate exercise
C.hurt badly
D.not used