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Methods The diagnoses and differential diagnoses of twelves cases of SHL were analyzed.
方法对1 2例SHL患者的诊断及鉴别诊断进行分析。
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We were on a plane and had about two hours to kill. I figured running through the twos to the twelves would take about 20 minutes.
当时我们正在飞机上,大约有两个小时的空闲时间。我本来估计过一遍乘法表可能需要20分钟。