皮皮学，免费搜题
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【单选题】
我国用于医学实验室认可的准则 CNAS/CL02 : 2006 《医学实验室认可准则》等同于下列哪项国际准则( )A.
ISO 15189
B.
ISO 17025
C.
ISO 15190
D.
ISO 15195
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
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【单选题】电路如图 9.7 所示,设电路正常工作,当电网电压波动而使 U2 增大时 ( 负载不变 ) ,则流经负载的电流将 ( )
A.
增大
B.
减小
C.
基本不变
D.
不确定
【简答题】分析下图选择正确的答案填空。(填写字母) 设负载不变,当电网电压波动使u2增大时,则IR将 ,Iz将 ,Uo将 (A:增大;B:减小;C:基本不变)。
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