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问题 单项选择题

关于急性肾功能衰竭，下列哪项是错误的

A．肾衰是临床各科常遇到的疾病

B．肾后性肾衰又称功能性肾衰，只要警惕是能防止的

C．肾前性肾衰若及时解除梗阻预后良好

D．判断急性肾衰最简易的方法是测定尿量、尿比重与血尿素氮

E．急性肾衰的死亡率很高，但诊疗及时是能挽救的

答案

参考答案：A

单项选择题

cyclinD可与Cdk4/6结合作用于哪个转变过程中（）

A.G1期向S期

B.S期向G2期

C.G2期向M期

D.M期向G1期

E.S期向G1期
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单项选择题

(71) In the strength of the carrier signal is varied to represent binary 1 or 0.
(72) is a system that can map a name to an address and conversely an address to an name.
(73) is a three-way handshaking authentication protocol that it’s packets are encapsulated in the point-to-point protocol
(74) is an approach that enables an ATM Switch to behave like a LAN switch.
(75) is an guided media which is made of glass or plastic and transmits signals in the form of light.

A．ASK

B．PSK

C．FSK

D．FDM
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