| It is hard to track the blue whale, the
ocean’s largest creature, which has almost been killed off by commercial whaling
and is now listed as an endangered species. Attaching radio devices to it is
difficult, and visual sightings are too unreliable to give real insight into its
behavior. So biologists were delighted early this year when with the help of the Navy they were able to track a particular blue whale for 33 days monitoring its sounds. This was possible because of the Navy’s formerly top-secret system of underwater listening devices spanning the oceans. Tracking whales is but one example of an exciting new world just opening to civilian scientists after the cold war as the Navy starts to share and partly uncover its global network of underwater listening system built over the decades to track the ships of potential ene A. the sophisticated technology of focusing sounds under water B. the capability of sound to travel at high speed C. the unique property of layers of ocean water in transmitting sound D. low-frequency sounds travelling across different layers of water [判断题]雷雨天时，可进行野外起重作业。
A.正确 B.错误 [多选题]各单位依据岗位实习的考试考核结果进行总结鉴定,鉴定结果分为( )
A.优秀 B.良好 C.合格 D.不合格 [填空题]成年男性平均感知电流比成年女性平均感知电流（）。
[判断题]计量二次回路进行接线相关试验时，试验人员应具有试验专业知识，充分了解被试设备和所用试验设备、仪器的性能。
A.正确 B.错误 [单项选择]男，78岁。间断餐后上腹痛伴嗳气40年，无反酸，曾行胃镜及病理检查提示重度萎缩性胃炎。近期出现乏力及消瘦。胃镜发现胃角巨大溃疡，周边不规则隆起，中心有较大血凝块附着，其余部位无出血病变。行手术治疗。术后病理最可能为（）
A. 胃淋巴瘤 B. 胃间质瘤 C. 胃癌 D. 胃溃疡 E. 胃结核 [单选题]关于骨迷路的叙述，哪项是错误的（ ）
A.包括骨半规管、前庭、耳蜗和蜗管 B.骨半规管有三个 C.前庭外侧壁有前庭窗和蜗窗 D.耳蜗由蜗螺旋管环绕蜗轴而成 E.骨迷路与膜迷路之间含有外淋巴 [多选题]关于司机室广播控制盒的功能不正确的是( )。
A. 更换报站语音 B. 调整整车音量 C. 客室人工广播 D. 调节车厢音量 [单项选择]男，56岁，浮肿半年，腰以下尤甚，按之没指，小便短少，畏冷肢凉，腰膝酸软，舌淡胖，苔白滑，脉沉迟无力，属（）
A. 肾虚水泛证 B. 肾阳虚证 C. 脾肾阳虚证 D. 风水相搏证 E. 脾阴虚证 [判断题]员工公休时,需重新登记一列《个人工作概览》,并在“角色”处标注公休。( )
A.正确 B.错误 [单选题](35469)木排架可用在各种基础上，梁上跨度能用到( )。(1.0分)
A.16m B.32m C.48m D.64m [判断题]相邻两档距之和的算是平均值称为垂直档距。
A.正确 B.错误 [判断题]决策是衡量管理者水平高低的重要标志之一，在管理活动中具有重要的地位和作用（）。
我来回答: 提交
|
