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【单选题】
高血氨症导致脑功能障碍的生化机制是氨增高会A.
大量消耗脑中-酮戊二酸
B.
升高脑中pH
C.
升高脑中尿素浓度
D.
抑制脑中酶活性
E.
直接抑制脑中呼吸链
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举一反三
【单选题】The unit of measure for FET transconductance (gm) is _______.
A.
ohms per volt
B.
volts per ohm
C.
Siemens
D.
The term is unitless
【单选题】A unit of CPU that decodes each instruction and turns it into a series of control signals is called ( ).
A.
ALU
B.
RAM
C.
ROM
D.
control unit
【单选题】The unit of measure for FET transconductance ( ) is ___C____.
A.
ohms per volt
B.
volts per ohm
C.
Siemens
D.
The term is unitless
【单选题】A complete computer system contains(74)。
A.
arithmetic unit, control unit and memory
B.
input/output devices and mainframe
C.
mainframe. and programs of utility
D.
hardware system and software system
【单选题】The unit of measure for FET transconductance is ( ).
A.
ohms per volt
B.
volts per ampere
C.
Siemens
D.
unitless
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