题目内容

以下无助于抑制干扰源的措施是(42)。

A. 通过在干扰源回路串联电感或电阻以及增加续流二极管来减小干扰源的du/dt
B. 在继电器接点两端并接一个RC串联抑制电路
C. 在可控硅两端并接RC抑制电路
D. 布线时避免≤90°的折线

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(35)

A. 病历号
B. 病历号,病情,就诊日期
C. 病历号,就渗日期,医生代码
D. 病情,就诊日期,医生代码

A.Health.B.Age.C.Weight.D.Height.

A. Health.
B. Age.
C. Weight.
D. Height.

A.4,000.B. 3,000.C. 9,000.D. 7,000.

A. 4,000.
B. 3,000.
C. 9,000.
D. 7,000.

A.The woman wants to sell something.B.The newspaper doesn't care what people want to a

A. The woman wants to sell something.
B. The newspaper doesn't care what people want to advertise.
C. The ad will be published immediately.
D. The newspaper workers will not change the spelling of any words in the ad.

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