过电流保护的保护范围比速断保护的保护范围大,所以过电流保护是主保护。
参考答案:对
丽春红S法可用于测定()加热乙酸法可用于测定()磺基水杨酸法用于测定()
A.尿蛋白
B.尿糖
C.尿胆红素
D.尿酮体
E.尿隐血
A:Who(谁)is that girl?
B:Oh, is my friend. name is Sally.
A.She, She
B.Her, Her
C.She, Her
D.Her, She