下列哪些措施不能提高系统静态稳定性()。
A.串联电容
B.串联电抗
C.降低系统电压
D.减小变压器的电抗
参考答案:B, C
We live right here. Look! The house on the other side of the street is my uncle’s. His house is ______ ours.
A.in front of
B.next to
C.behind
D.opposite
以下哪种不是肠杆菌科细菌的性状
A.发酵葡萄糖
B.还原硝酸盐
C.氧化酶阳性
D.需氧或兼性厌氧
E.触酶阳性