溶液纺丝主要分为哪两种方法，其工艺有何区别？
地锚基坑前方地锚出线点（即钢丝绳穿过上层后露出地面处）前方坑深2．5倍范围及基坑两侧2m范围以内，不得有（） ["地沟","电缆","地下管道","地下煤气管","临时挖沟"]
传票的种类多种多样。根据传票装订与否，分为（）和活页本两种 ["单式传票","复式传票","装订本","多项目传票"]
电动卷扬机应完整无损，如发现（）等情况时，必须进行修理或更换 ["卷筒壁减薄10％","简体裂纹和变形","电气受潮","卷筒轴磨损严重","减速箱油量不足"]
金属桅杆又可分为（） ["管式桅杆","B．人字桅杆","C．牵引桅杆","D．龙门桅杆","E．格构式桅杆"]
ARDS病理特点和临床表现为何？
