查找档案文献时应注意把握查找材料的各种线索，其主要线索不包括（）。
A、时间断限
B、地区范围
C、新旧著述、回忆录、涉及的人物
D、人际关系
参考答案：D
关于内收型外科颈骨折的叙述正确的是：
A．由直接外力所致
B．骨折近端呈内收
C．肱骨干外展
D．折端向外向前成角
E．常合并肩关节脱位
When in command of a lifeboat under oars，the command TOSS OARS means to（）.
A.lift oars to vertical position，trim blades fore and aft with handles resting on the thwarts
B.complete the stroke，come to Oars，raise the oars smartly to the vertical，rest handles on footings and trim blades fore and aft
C.place oars in row locks directly from the boated position or from Stand by oars position
D.complete the stroke (when rowing in ahead motion)，raise the oars with crook of elbow to about 30 degrees，swing blades forward
