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若|x|=|-7|,则x=   .

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失血量=[(原测得Hb一失血后Hb)/失血后Hb]x体重(kg)x7%  失血量=[(原测得Hct一失血后Hct)/原测得Hct]x体重(kg)x7%  失血量=[(原测得Hb一失血后Hb)/原测得Hb]x体重(kg)x7%  失血量=[(原测得Hct一失血后Hct)/失血后Hct]x体重(kg)x7%  失血量=[(原测得Hct一失血后Hct)/原测得Hb]x体重(kg)x7%  
1%乳酸或0.5%醋酸溶液阴道冲洗  早孕患者口服甲硝唑0.4g,每天2次x5天  2%~4%碳酸氢钠溶液冲洗阴道每天1次  未婚女性口服甲硝唑2g,每天2次x7天  睡前阴道放置甲硝唑2g,每天1次x10天  
F1=0.9707X1-0.1168X2-0.0319X3+e1  X1=0.9707F1-0.1168F2-0.0319F3+e1  X1=0.9707F1+0.9409F2+0.9441F3+0.6159F4+0.7962F5+0.6396F6+0.9013F7+e1  F1=0.9707X1+0.9409X2+0.9441X3+0.6159X4+0.7962X5+0.6396X6+0.9013X7+e1  
I(1)>I(2)=I(3)>I(4)=I(5)  I(1)>I(2)<I(3)>I(4)=I(5)  I(1)>I(2)>I(3)<I(4)=I(5)  I(3)>I(2)<I(1)>I(4)=I(5)  
Y1=4.9537X1+1.051X2+0.514X3+0.3571X4+0.0957X5+0.0171X6+0.0114X7  Y1=0.4362X1+0.1139X2-0.0445X3-0.01X4-0.6334X5+0.1304X6-0.6136X7  Y1=0.4362X1+0.4228X2+0.4242X3+0.2767X4+0.3577X5+0.2874X6+0.4049X7  Y1=0.9731X1+0.9429X2+0.9448X3+0.6603X4+0.7833X5+0.6488X6+0.9141X7  
遥控单元、监控单元  功放、自适应调谐滤波器  遥控总线、功放  滤波器、监控单元  
8%x6%x5%x7%  (8%x6%x5%x7%)-100%  108%x106%x105%x107%  (108%x106%x105%x107%)-100%  

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