直流电弧由()、()和()组成。
参考答案:阴极区;阳极区;弧柱区
The English articles are not very difficult because there are only new words in it. [ ]
A. a lot
B. a little
C. a bit
D. a few
患者最可能诊断为
A.急性膀胱炎
B.急性肾盂肾炎
C.急性肾小球肾炎
D.肾结核
E.急性间质性肾炎