| 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 [单选题]普通股的最大特点是
A.通常享有表决权 B.构成公司资本的最基本部分 C.资产收益率不固定 D.参与公司经营管理决策 [判断题]二次设备箱体应可靠接地且接地电阻应满足要求
A.正确 B.错误 [单选题]根据车辆购置税法律制度的规定 ， 下列车辆中 ， 不属于车辆购置税免税项目的是（ ） 。
A.外国驻华使馆的自用小汽车 B.设有固定装置的非运输专用作业车辆 C.城市公交企业购置的公共汽电车辆 D.个人购买的经营用小汽车 [单选题]对于某一种类的风险,生产经营单位应当根据存在的()和可能发生的事故类型,制定相应的专项应急预案。
A.重大危险源 B.一般危险源 C.危险目标 [多选题]下列属于企业综合绩效评价中管理绩效评价指标的有（）。
A.经营增长评价 B.风险控制评价 C.资产质量评价 D.经营决策评价 E.人力资源评价 [多项选择]朱砂的适应证是（）
A. 惊风，癫痫 B. 心神不安，心悸、失眠 C. 肾虚遗精、滑精 D. 疮疡肿毒，咽喉肿痛 E. 淋证，癃闭 [判断题]员工对涉及本人、配偶、子女和其他近亲属等利益相关方的授信融资、资金交易、资产处置、集中采购、基建装修、干部选拔任免等经营管理活动，以及其他关联交易和内部交易，应按规定报告、回避、审批。
A.正确 B.错误 我来回答: 提交
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