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【单选题】
关于计算机网络中的数据交换,以下说法正确的是( )。A.
报文交换比分组交换适用于交互式通信
B.
报文交换不需要在两个站之间建立专用通路，传送方式采用“ 存储— 转发” 方式
C.
电路交换是计算机网络中使用最广泛的一种交换技术
D.
报文交换可以满足实时通信的要求
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皮皮学刷刷变学霸
举一反三
【单选题】We are past the period of evolution when only the fittest can______.
A.
endure
B.
function
C.
remain
D.
survive
【单选题】It is only with further evolution and refinement that health plan report cards can ______their potential and become a distinctive and useful tool.
A.
shed light on
B.
put up with
C.
look forward to
D.
live up to
【单选题】We can infer from the last two paragraphs that______.
A.
evolution is a mindless, random process
B.
sometimes, nature's systems are more advanced than modern technology
C.
engineers who invent new technology always discover that nature has been there first
D.
real-world problems can be solved by using design knowledge
【简答题】“”构想的核心是（ ）。
【简答题】指出下列函数的间断点，并说明这些间断点的类型：
【单选题】The collapse of manners in Britain can be ascribed to______.
A.
natural evolution of human beings
B.
the dominance of single-parent families
C.
the absence of education on social manners
D.
lack of harsh penalties on offenders
【单选题】王某,女,44岁。有风湿性心脏病、心力衰竭病史。平素受凉感冒后易发生咳嗽、呼吸困难、乏力症状,自服“螺内酯、氢氯噻嗪,卡托普利、地高辛、美托洛尔”等药物。针对上述病情变化,下列处理措施中__错误__的是( )
A.
端坐位
B.
高流量给氧
C.
硝酸甘油静脉泵入
D.
呋塞米静脉注射
E.
CPR
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