单选题
发布日期:2021-03-22
at anchor
mine-clearing
engaged in fishing
engaged in towing
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简述GPS系统的特点。
试解释对被保险船舶不适航的主要规定。
对威胁者来说威胁形成的一个必要条件是()。
承担凭证式国债发行业务的商业银行,均可以办理凭证式国债质押贷款业务。
处理I/O请求的主要步骤是什么?
根据《塔式起重机技术条件》的规定,塔机安装后,在空载无风状态下,塔身轴心线对支撑面的侧向垂直度为()。
()是货币扩张或收紧的倍数,反映的是广义货币量与储备货币的倍数关系。
患儿,男,6岁,生后哭闹后有发绀。6个月后发绀渐明显,喜蹲踞。哭闹后有突发呼吸急促,发绀加重,严重时伴昏厥。口唇、指(趾)甲发绀,杵状指、趾。胸骨左缘第2~4肋间闻及Ⅱ~Ⅲ级收缩期喷射性杂音,肺动脉瓣区第二心音减弱。此例最可能诊断为()
吊弦预制长度应与计算长度相等,误差应不大于±2mm。吊弦截面损伤不得超过整个有效截面的()
某地下室施工完毕后进行基坑回填夯实,回填土的质量用1升的环刀取得土样共10组,称其每组质量均为2.5㎏,再经烘干后称得质量分别为2.06㎏、2.11㎏、2.05㎏、2.10㎏、2.12㎏、2.01㎏、2.09㎏、2.13㎏、2.07㎏、2.08㎏,由击实试验测得该土最大干密度为2.2g/cm3,规范要求该类土的压实系数λc=0.93,问:该基坑地下室回填土样压实质量是否合格?
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