【单选题】________ the mountains was hard work for them but as they looked around, they could not help screaming.
【多选题】脚手板的设置应符合下列( )要求。
B.
作业层端部脚手板探头长度应为130~150 mm,其板长两端均应与支撑杆可靠地固定
C.
凡脚手板伸出横向水平杆以外大于150 mm的称为探头板,严禁探头板出现
D.
当脚手板长度小于2 m时,可采用两根横向水平杆支承,但应将脚手板两端与其可靠固定,严防倾翻
E.
冲压钢脚手板、木脚手板、竹串片脚手板等,应设置在2根横向水平杆上
【简答题】Phil looked around at the other competitors (竞争对手) and __________ his chances of winning.
【简答题】Phil looked around at the other competitors and _____________ assessed ( 对 ... 进行评估 )his chances of winning.
【判断题】新生儿人工呼吸时潮气量应为为40-60ml