Thisis one of the reasons for high absence rate in some public courses.

这是一些公共课程中高缺勤率的原因之一。

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The middle colic artery (MCA) stemmed from the superior mesenteric artery (SMA) in 77.8% of the patients with an absence rate of 8. %.

中结肠动脉单独起自肠系膜上动脉者占77·8%，存在副中结肠动脉者占·%，与右结肠动脉共干者7·8%，缺如8·%；

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Results Psychological health state, degree of job satisfaction, absence rate and work ability were poor with increasing occupational stress.

结果心理健康状态与工作能力呈明显负相关，工作满意度与工作能力呈明显正相关。

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Here the unauthorised absence rate fell to 1.4% from 1.47% the year before.

BBC: Millions of school days lost to family holidays

"Although the rate of employee absence has fallen in the public sector, it is still a lot higher than in the private sector, and this issue should be addressed, especially given that the public finances are strained, " said Katja Hall, director of employment policy at the CBI.

BBC: Sick days taken by UK workers has fallen, says CBI

Measuring the effectiveness of these tools is hard, since nobody can know what the exchange rate would be in their absence.

ECONOMIST: Latin America's economies: Waging the currency war | The