贫血最常见临床表现是()
A.窦性心动过速
B.心脏杂音
C.皮肤和黏膜苍白
D.口腔炎,舌炎
E.毛发干燥无光泽,易脱落
参考答案:C
末端试水装置可以检测干式系统和预作用系统充水时间。
以下哪个参数可以调整2A事件触发的难易度()
A.Absolute Threshold of the Quality ofthe Currently Used Frequency
B.Absolute Threshold of the Quality ofthe Non-used Frequency
C.Hysteresis
D.Weight of the Currently Used Frequency