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【单选题】
男,46岁。体检发现血压升高6个月。查体:血压150/100mmHg,心率86次/分,律齐。实验室检查:血肌酐96μmol/L,血尿酸500μmol/L。该患者控制血压的目标值是血压低于A.
140／80mmHg
B.
120／70mmHg
C.
130／90mmHg
D.
140／90mmHh
E.
130／80mmHg
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【单选题】差分放大电路的主要特点是( )
A.
有效放大差模信号，有力抑制共模信号
B.
既放大差模信号，又放大共模信号
C.
有效放大共模信号，有力抑制差模信号
D.
既抑制差模信号，又抑制共模信号
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