功频电液调节系统中功率信号的选择由两种方式：一是取发电机功率，二是取发电机频率。（）
参考答案：错
I thought he was not____ of a professor the first time I heard him speaking to the children at the platform in the hall of our school.
A．something
B．anything
C．somebody
D．anybody
对被扣押的物品，满（）个月无人对该财产主张权利或者无法查清权利人的，应当公开拍卖或者按照国家有关规定处理。
A.三
B.六
C.十二
D.五
