在土壤电阻率不大于500Q.m的地区,独立避雷针的接地电阻不应大于( )。
A.10Ω; B.5Ω; C.4Ω; D.30Ω。
参考答案:A
When I talked with my grandma on the phone, she sounded weak, but by the time we ___ up, her voice had been full of life
A.were hanging
B.had hung
C.hung
D.would hang
多尿型或非少尿型肾衰竭是指()
A.尿量<50ml/d
B.尿量<100ml/d
C.尿量<400ml/d
D.尿量>800ml/d
E.尿量>1000ml/d