艺术概括的核心问题
关于两侧胸膜腔,正确的叙述是() ["内含少量浆液","借心包横窦相通","借膈主动脉裂孔和腹膜腔相通","下界在腋中线平第8肋","内有两肺"]
下列腧穴,不属于足少阳胆经的是() ["A.风池","B.风市","C.风府","D.头临泣","E.足临泣"]
“可持续发展”概念由联合国大会于()首次使用。 ["1960","1970","1980","1990"]
使用环磷酰胺治疗系统性红斑狼疮的指标是() ["口腔溃疡","关节炎","肾炎","浆膜炎","蝶形红斑"]
节肢动物的外骨骼有什么重要作用?