患者,男,38岁,发现四肢肥大10余年,检查可见手指、脚趾肥大,下颌突出,鼻子增大。医生诊断为肢端肥大症。该病为下列哪个结构异常分泌激素促进骨的生长发育所致
A. 肾上腺皮质
B. 肾上腺髓质
C. 垂体前叶
D. 垂体后叶
E. 胸腺
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患者,男,50岁,无明显诱因出现眩晕、恶心、呕吐以及吞咽困难等症状,经临床检查诊断为血管闭塞引起延髓背外侧综合征,出现闭塞的血管最有可能是
A. 大脑中动脉
B. 大脑后动脉
C. 小脑下前动脉
D. 小脑下后动脉
E. 迷路动脉
Abstract is an abbreviated, accurate representation of the contents of a document, with added interpretation or criticism.
A. 对
B. 错
Because of the need for self-contained compactness, an abstract must convey the essential results of a paper.
A. 对
B. 错
An abstract of a paper should omit background information, a literature review, and detailed description of methods a literature review.
A. 对
B. 错