更多“下列关于视频文件的描述正确的是( ) 。”相关的问题
可保风险的要件有()A.风险必须是意外的B.风险应有发生重大损失的可能性C.风险不是投机的D.风
可保风险的要件有() A.风险必须是意外的 B.风险应有发生重大损失的可能性 C.风险不是投机的 D.风险必须是大量标的均有遭受损失的可能性 E.风险必须是偶然的
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教育应保护受教育者的（），而不应扼杀个人的这种与生俱来的天性。
A.积极性
B.求索精神
C.主动性
D.创新精神
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哪些是高级管理层在新产品开发中的关键作用？（）
A.决定采取什么类型的市场研究B.产品开发和执行C.了解新产品开发过程D.所有列出的答案
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红细胞平均血红蛋白量(meancorpuscularhemoglobinMCH)
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根据安全技术措施等级顺序的要求应遵循的具体原则。
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被叶绍钧誉为“替新诗的音节开了一个新的纪元”的名作是（）。
A.《凤凰涅槃》
B.《再别康桥》
C.《死水》
D.《雨巷》
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允许速度大于120km/h的线路，如缓和曲线长度不足，顺坡可延伸至()上。
A.圆曲线上B.延长圆曲线上C.延长缓和曲线D.直线上
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氨用压力表的型号是（）。
A . A、YA
B . B、YD
C . C、YT
D . D、YF
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男性，60岁，健康体检中发现：乙型肝炎病毒标记阳性，ALT：120U/L，AFP：150μg/L。B超和CT检查均未发现肝脏占位性病变应采取的措施是（）.
A . A.选择性肝动脉造影
B . 肝穿刺活检
C . 定期随访AFP和ALT
D . GGT
检查
E . 手术治疗
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色彩绚丽的大理石特别是红色的大理石用作室外墙柱装饰，为何过一段时间后会逐渐变色、褪色？
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纳税人的税务登记内容发生变化时，应当依法向原税务登记机关申报办理（）。
A.设立税务登记 B.变更税务登记 C.注销税务登记 D.注册税务登记
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将会计凭证划分为原始凭证和记账凭证的依据是会计凭证（）。
A.编制的时间
B.取得的来源
C.填制的程序和用途
D.反映的经济业务内容
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Memo To: Mr. Louis Johnson, President From: Margaret Ellis, Health Consultant Date: December 1, 2009 Subject: Improving Computer-User’s Comfort Enclosed is the report. "Improving Computer User’s Comfort", which you asked me to prepare. The report summarizes current research on the effects of computers on health and recommends changes for our computer users. I interviewed over 60 employees of Far East Trade Development Company in the last six months and consulted with health experts in eye and wrist fatigue. I also reviewed all the current literature available for computer health hazards (危险). My recommendations are as follows: 1. Anti-radiation (防辐射) screens should be available for computer monitors. 2. Devices to support the wrist of the computer user should be used to help maintain proper wrist position during computer use and possibly reduce the risk of wrist illnesses. 3. Employees need adjustable chairs which can give their backs a stronger support. For the technical possibility of designing the anti-radiation screens, you may consult Mr. Joseph Miller, and for the specific application of wrist-support devices, you may consult Mr. Benjamin Stone, Technical Department. If you have any other questions or would like to discuss my recommendations, please let me know.Memo To: Mr Louis Johnson, President From: Margaret Ellis, Health Consultant Date: December 1, 2009Subject: Improving Computer-User’s Comfort 1. Margaret Ellis interviewed some computer users (46) ago to write the report. 2. The report concerns mainly about the effects of computers on (47) Recommendations: 1. The company should design devices to protect the computer users’s (48) and wrist. 2. Adjustable chairs should be used to protect their (49) 3. Anti-radiation(防辐射) screens should be available, and the president may consult(50) about the designing of it
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