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【单选题】

接触皮肤的一般诊疗用品如血压计、听诊器、体温表的清洁与消毒方法是

A.
每日清水清洁擦拭,污染后应随时清洁干净
B.
血压计袖带若被血液、体液污染,应在清洁的基础上,用含有效氯500mg/L的消毒液浸泡300分钟洗干净、晾干备用
C.
听诊器若被污染可用75%酒精擦拭
D.
体温计每次用后可用75%酒精或含有效氯500mg/L的消毒液浸泡30分钟洗干净、擦干备用
E.
以上都对
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【多选题】电子血压计的优点。

A.
测量准确
B.
结构轻巧
C.
易于携带
D.
便于自我测量

【单选题】It is hard to track the blue whale, the ocean’’s largest creature, which has almost been killed off by commercial whaling and is now listed as an endangered species. Attaching radio devices to it is d...

A.
the sophisticated technology of focusing sounds under water
B.
the capability of sound to travel at high speed
C.
the unique property of layers of ocean water in transmitting sound
D.
low-frequency sounds traveling across different layers of water

【单选题】医生在诊病时常使用听诊器,听诊器的工作原理是( )。

A.
使心脏振动的振幅增加,响度增大
B.
改变心跳的频率,使音调变调
C.
改变心跳的音色,使声音好听些
D.
减小声音传播过程中的能量损耗

【单选题】水银血压计的示值允许误差为

A.
±2.25mmHg
B.
±3.00mmHg
C.
±3.75mmHg
D.
±4.50mmHg
E.
±5.25mmHg