作为贵族文化的象征，（）在南北朝时期再次得以追捧。 ["和歌","俳句","诗经","物语"]
A mooring line leading 45° to the keel，used to check forward or astern movement of a vessel，is called a （）. ["spring line","warp line","bow line","breast line"]
The ports are drilled in the liners at an angle of approx 20℃ the result being that （） is given a rotary movement. ["the scavenging air","the exhaust gases","the mixed air","the spray oil"]
要求各变电站设备完好率在100%，一级率在（）。 ["100%","90%","80%","80%以上"]
船舶遇难后应尽快放下救生艇，若是机动艇最好在何时启动机器？（） ["艇着水后","艇脱钩后","艇着水前"]
简述组织液循环障碍结局及对机体影响。
