考研 2022_04_18 每日一练
男性,36岁,因胃穿孔行急诊手术。术后第6天出现发热、寒战、右上腹痛及呃逆。查体:右肺呼吸音低,呼吸移动减弱,胸片示右膈活动受限,肋膈角不清。白细胞18.1×109/L。此病人应诊断为
A.右下肺炎
B.右侧胸膜炎
C.右膈下脓肿
D.右肝脓肿
E.右侧脓胸
With the open-access publishing model, the author of a paper is required to
A.cover the cost of its publication.
B.subscribe to the journal publishing it.
C.allow other online journals to use it freely.
D.complete the peer-review before submission.