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【单选题】
患者,女性,69岁,患慢性肺源性心脏病十,现已发展出现颈静脉怒张、肝大、肝门静脉回流征(+)、腹水、下肢浮肿,何故A.
门静脉高压
B.
低蛋白血症
C.
右心衰竭
D.
心包积液
E.
慢性肝炎
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举一反三
【单选题】以下关于像素的说法,错误的是( )。
A.
像素就是图像中不可分割的单位或元素。
B.
每一个像素的颜色都是单一的。
C.
如果一个像素点有8位二进制，那么一个像素点就可以显示256种颜色
D.
图像中像素越多，分辨率就越高，图像越逼真，图像尺寸则越小。
【单选题】Egypt 's influence in the region has been gradually changing; Saudi Arabia ,an oil rich county, is now the domineering force.
A.
This is a correct sentence.
B.
This sentence is a run-on sentence.
C.
It's a sentence fragment.
D.
This sentence has a comma splice.
【单选题】The author suggests that the main reason for the persisting influence of Bachofen's work is that ______.
A.
feminists have shown little interest in ancient societies
B.
Bachofen's knowledge of Amazonian culture is unparalleled
C.
reliable information about the ancient world is difficult to acquire
D.
historians have been primarily interested in the modern period
【简答题】是周期为N的周期序列，它的傅里叶级数的系数X(k)也是周期为N的周期序列。求 的傅里叶级数的系数 的关系。
【单选题】The author suggests that the main reason for the persisting influence of Bachofen's work is that ______.
A.
feminists have shown little interest in ancient societies
B.
Bachofen's knowledge of Amazonian culture is unparalleled
C.
reliable information about the ancient world is difficult to acquire
D.
ancient societies show the best evidence of women in positions of power
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