舵设备安装或修理后,要进行下列试验() ①系泊试验; ②转舵周期试验; ③航行试验; ④“Z”字试验。 ["①②对","①③对","①②③对","①②③④对"]
BTO存量管理适用条件是什么?
水泥路面施工时,搬运袋装水泥必须按照()顺序取运。 ["A.自上而下 ","B.自下而上 ","C.自左而右 ","D.自右而左"]
活血化瘀调经法适用于月经周期的哪些阶段() ["经后期、经间期","经前期、经后期","经间期、经期","经前期、经间期","经前期、经期"]
胸骨右缘第2肋间触及收缩期震颤,最常见于() ["三尖瓣狭窄","肺动脉瓣狭窄","二尖瓣狭窄","室间隔缺损","主动脉瓣狭窄"]
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