肺毛细血管周围间隙() ["与毛细淋巴管相通","与小静脉相通","与小动脉相通","与终末支气管相通","与上述组织周围的间隙相通"]
二氧化碳在血液中运输方式主要是() ["溶解在血浆中","与血红蛋白结合","以碳酸盐的形式","以上均是","以上均不是"]
闭合气量大于潮气量时说明() ["深呼气时有气道闭合","潮气呼吸呼气时有气道闭合","功能残气量下降","功能残气量增加","功能残气量不变"]
对钢板及有棱角类货物吊装的作业要求?
井巷维修工作量以()计算。 ["长度","工作日数","工作人数","体积数"]
吊装作业对拉绳的作业要求?