当电网频率上升时,汽轮机的转速下降。
参考答案:错
--- How did you find him out ?
--- I _____ his name by chance on a list.[ ]
A. came down
B. came about
C. came up
D. came across
巡游出租汽车车辆经营权的经营协议中应当包括的有()
A.履约担保
B.巡游出租汽车车辆经营权的数量、使用方式、期限等
C.巡游出租汽车车辆经营权的变更、终止和延续等
D.争议解决方式