【简答题】Some Internet shops (倒闭)after a few months because they spent too much and had delivery problems.
【单选题】下列有关上高和多层作业时安全注意事项的说法中,不正确的是()。
【简答题】Some Internet shops ( 倒闭 )after a few months because they spent too much and had delivery problems.
【单选题】上高和多层作业安全注意事项中,不正确的是:
【单选题】下列有关上高和多层作业时安全注意事项的说法中,不正确的是()。
A.
在强风中或涌浪时,除非特殊需要,禁止上高作业。
B.
当上层有人作业时,协助人员应在其下方准备随时配合
【单选题】以下有关上高和多层作业时安全注意事项的说法中,不正确的是:
【单选题】上高和多层作业安全注意事项中,不正确的是 。
【单选题】Some Internet shops ______after a few months because they had delivery problems.