在中性点()接地的电力系统中,发生单相接地故障时,非故障相对地电压会不变。
A、直接
B、不
C、经消弧线圈
D、经小电阻
参考答案:A
流行性乙型脑炎与流行性脑脊髓膜炎、中毒型菌痢的主要区别在于()
A.发病季节
B.意识障碍
C.脑膜刺激征
D.皮肤瘀点、淤斑
E.脑脊液变化
In a Han Dynasty tomb, they found some precious jars and vases, _______ are valuable.
A.even the pieces of them
B.which even pieces
C.even the pieces of which
D.that even pieces