题目内容

左心室后负荷过重引起慢性心力衰竭的疾病是()

A. 高血压病
B. 二尖瓣狭窄
C. 二尖瓣关闭不全
D. 三尖瓣狭窄
E. 三尖瓣关闭不全

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定电流充电有什么优点?

A client host uses IPv4 to communicate with one ser ver and IPv6 to communicate with another.Which of the following IPv6 coexistence features is likely at work on the host?()

A. Native IPv6
B. Point - to -point tunnels
C. Multipoint tunnels
D. NAT - PT
E. Dual stack

综合服务模型是指()。

A. Best-Effort service
B. Integrated service
C. Differentiated service
D. Best service

吃水和干舷是指船舶尺度。

A. 正确
B. 错误

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