下面关于C波段频率的描述哪个是正确的()
A、1570-1600nm
B、1530-1625nm
C、1535-1545nm
参考答案:B
He never complains about the difficulties he has in life. ,he always has ways to overcome them.
A.However
B.Otherwise
C.Instead
D.Therefore
下列疾病无管型尿的是()
A.肾病综合征
B.急性肾盂肾炎
C.急性膀胱炎
D.急性肾小球肾炎
E.急进性肾炎