【单选题】The film used in photography is only a fraction of an inch thick, but is composed of many layers.
【判断题】People perceive only a fraction of the stimuli to which they are exposed.
【判断题】Only a fraction of a process's working set needs to be stored in the TLB.
【简答题】移动电具安全检查 内 容 包 括 ( )。A. 是否有效接地 B. 外壳、插头是否破损 C. 工具是否陈旧 D. 电线是否破损
【单选题】依据《矿山安全法》的规定,矿山企业( )分配女职工从事矿山井下作业。
【多选题】矿山井下作业人员可能会导致的职业病有( )。