People who are hit by lightning and survive often have long-term effects. These may include memory loss, sleep disorders, muscle pain and depression.
Expels tell people to seek the safety of a building or a hard-top vehicle(运输工具)anytime they hear thunder, even if it is not raining. They say lightning can strike as far as sixteen kilometers from any rainfall. Lightning can travel sideways. And at least ten percent of lightning happens without any clouds overhead that you can see.
People who are outdoors should make sure they are not the tallest thing around. Bend low to the ground, but do not lie down. And do not stand near a tree or any tall subject. Get away from water and anything made of metal. A car is safe, but do not touch any metal inside.
Safety experts say people in buildings should stay away from anything with wires or pipes that lead to the outside. The National Weather Service says if you plan to disconnect any electronic equipment, do s
A. The latest information about lightning.
B. Some common knowledge about lightning safety.
C. How lightning comes into being.
D. Where we should hide in case of lightning.
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{{B}}Where Did All the Ships Go {{/B}} The Bermuda Triangle is one{{U}} (1) {{/U}}the greatest mysteries of the sea. In this triangular area between Florida, Puerto Rico and Bermuda in Atlantic, ships and airplanes{{U}} (2) {{/U}}to disappear more often than in{{U}} (3) {{/U}}parts of the ocean. And they do so{{U}} (4) {{/U}}leaving any sign of all accident or any dead bodies. It is{{U}} (5) {{/U}}that Christopher Columbus was the first person to record strange happenings in the area. His compass stopped working, a flame came down from the sky, and a wave 100 to 200 feet high carried his ship about a mile away. The most famous disappearance in the Bermuda Triangle was the US Naval Air Flight 19. {{U}} (6) {{/U}}December 5, 1 A. took up B. took as C. took after D. took off [判断题]杆塔分段吊装时，上下段连接牢固后，方可继续进行吊装工作。
A.正确 B.错误 [单选题]悬挂绳的眼环内必须装有( )护卡。
A.圆形 B.椭圆 C.心形 [名词解释]二德
[判断题]现场荷载试验确定地基容许承载力时一般采用极限荷载。( )
[判断题]CRH380A型动车组辅助空气压缩机在4和6车
A.正确 B.错误 [单选题]工艺卡片中，脱丁烷塔DA-901塔底温度T-9005控制指标范围是（ ）℃
A.135～145 B.135～140 C.125～150 D.125～145 [单选题]隧道拱顶漏水病害的整治易采用( )的整治办法。
A.引排 B.封堵 C.预防 D.截水 [单选题]关于主控计算机的功能,错误
A.控制图像重建程序 B.负责CT值校正 C.不接受来自阵列处理器的任务 D.控制光盘的数据传输 E.故障诊断 [单选题]线路综合维修验收评分标准规定，正线及到发线轨枕位置、间距偏差或偏斜
大于( )，每处扣 1 分。 A.50mm B.60mm C.40mm D.45mm [单选题]右上叶肺不张可出现( )
A.薄饼征 B.右上三角征 C.平腰征 D.心后三角征 E.左上肺索条影 [判断题]调车作业中严禁使用折角塞门放风制动。
A.正确 B.错误 [多选题]一般商船在旋回过程中,航向角改变90°时的进距( )约为(DT为旋回初径)(C)____。
A.1.0~1.5DT B.0.8~1.2DT C.0.6~1.2DT D.0.8~1.5DT [判断题]智能电网调度控制系统可以通过设置用户类型，控制用户只能查看权限管理界面的权限，不能修改权限。
A.正确 B.错误 [单项选择]锅炉点不燃火的原因不是（）。
A. 油温太低 B. 喷油嘴堵塞 C. 电点火设备有故障 D. 主汽阀未打开 [单项选择]右心功能不全与肝硬化的主要鉴别点是（）
A. 肝脏是否肿大 B. 腹水的有无 C. 有无消化系统症状 D. 颈静脉有无怒张 E. 有无水肿 [单选题]受力钢丝绳内侧严禁人员（）。
A.停留 B.跨越 C.短暂停留 D.通过 [单项选择]有助于预防输血过敏反应发生的是（）
A. 加强输血、配血过程中的核查工作 B. 选用洗涤红细胞 C. 尽量输同型血 D. 采用无热源技术配制保存液 E. 检查血液的保存期 [判断题]事故是指造成死亡、疾病、伤害、设备损坏或其他损失的意外情况。( )
A.正确 B.错误 [单项选择]心包积液征（Ewart征）是（）
A. 心尖搏动弱，位于心浊音界左缘的内侧或不能扪及 B. 左肩胛骨出现浊音及肺受压所引起的支气管呼吸音 C. 在胸骨左缘第3、4肋间可闻及心包叩击音 D. 心脏叩诊浊音界向两侧扩大 E. 心音低而遥远 [单选题]()在影响路基稳定的范围内挖沟、引水、耕种、取土和开采砂石。
A.严禁 B.可以 C.不得 D.允许 [单项选择]
阅读下面短文，回答问题 [单选题]某公司持有
A、
B、C 三种股票组成的投资组合，权重分：别为20％、30％和50％，三种股票的β系数分别为2.5、1.2、0.5。市场平均报酬率为10％，无风险报酬率为5％。试计算该投资组合的风险报酬率。
如果证券市场平均报酬率为10%，无风险报酬率为4%，某证券投资组合的贝塔系数为1.8，则该证券投资组合的必要报酬率为
A.6.0% B.10.8% C.14.0% D.14.8% 我来回答: 提交
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