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【判断题】
普通股是股票市场的主体，投资者众多且交易方便，出售比较容易，而且普通股的收益率一般要高于优先股和债券的收益率，因而比较容易被市场接受。( )A.
正确
B.
错误
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【单选题】Much of Africa moved right into the Iron Age, taking the basic technology and adapting it to local; conditions and resources. Unlike in the Americas, where metallurgy was a very late and limited devel...
A.
¨While American iron makers developed the latest furnaces, African iron makers continued using earlier techniques.
B.
¨Africans produced iron much earlier than Americans, inventing technologically sophisticated heating systems.
C.
¨Iron making developed earlier in Africa than in the Americas because of the ready availability of carbon and iron ore.
D.
¨Both Africa and the Americas developed the capacity for making iron early, but African metallurgy developed at a slower rate.
【单选题】听力原文： It was a hot afternoon in September 1963. A small party of engineers in a truck were exploring, looking for oil in the southeastern desert of Libya. They were about four hundred miles south of t...
A.
At dawn.
B.
At sunset.
C.
In the middle of the day.
D.
In the afternoon.
【单选题】A ball of clay falls freely to the hard floor. It does not bounce noticeably, and it very quickly comes to rest. What, then, has happened to the energy the ball had while it was falling?
A.
It has been used up in producing the downward motion.
B.
It has been transformed back into potential energy.
C.
It has been transferred into the ball by heat.
D.
It is in the ball and floor (and walls) as energy of invisible molecular motion.
【简答题】Benjamin Franklin and his inventions Benjamin Franklin was a very talented man. He invented man yuseful things. We still use some of them nowadays. In the 1740s Franklin invented the Pennsylvania Fire...
【单选题】赵某,男,59岁。因刺激性咳嗽咳痰,痰中带血1个月入院,胸部CT示“右肺占位性病变”,纤维支气管镜检查示“右肺下叶支气管可见新生物突人管腔,呈莱花状”,病理报告为“高分化鳞癌”,人院诊断“右肺中心型肺癌”,于全麻下行右全肺切除术。术后最主要的护理问题是
A.
气体交换障碍
B.
营养失调：低于机体需要量
C.
疼痛
D.
焦虑与恐惧
E.
肺感染
【简答题】All electronic computers are made up of four basic units although they may be of different kinds. ( ) 2. The moment I saw it clearly for what it was — a dead fish — I threw it away immediately....
【单选题】关于细胞靜息电位的论述，不正确的是（ ）
A.
静息电位与膜两侧Na+-K+泵的活动有关
B.
静息电位主要是由K+内流形成的
C.
细胞膜处于极化状态
D.
细胞在靜息状态时处于外正内负的状态
E.
静息状态下，细胞膜对K+通透性増高
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