By 2005 Americawas a dropout, with no as or Bs, four Cs and ten Ds.
到了2005年，美国退学了—没有A和B，四个C和十个D。
The most recent infrastructure "report card" by the American Society of Civil Engineers contains nothing but Cs and Ds.
美国土木工程协会给出的一份最新基础设施项目“成绩单”，得分不是及格就是不及格。
AIM To compare the effect of direct stenting (DS) and conventional post-dilation stenting (CS) on no-reflow phenomena in patients with coronary artery disease (CAD).
目的本研究评价直接支架术在急性心肌梗死和不稳定心绞痛患者中应用的成功率、病变选择特征及并发症的发生情况。
AIM To compare the effect of direct stenting (DS) and conventional post-dilation stenting (CS) on no-reflow phenomena in patients with coronary artery disease (CAD).
目的本研究评价直接支架术在急性心肌梗死和不稳定心绞痛患者中应用的成功率、病变选择特征及并发症的发生情况。
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