各级领导干部都是人民公仆，没有搞特殊化的权利。
参考答案：对
Mike is ______, but his brother Sam is much ______.
A．heavy; heavier
B．heavy; heaviest
C．heavier; heaviest
D．heavier; the heaviest
ZG80-1500型电力机车在串并联转换过程中有（）台电空接触器参与转换。
A.7
B.8
C.9
D.11
