高桥西站信号设备房使用那种类型ACE计轴评估器（） A: ACE 2-10 B: ACE 2-26 C: ACE 2-36 D: ACE 2-42

电力系统负荷频率静态特性表示为（）。 A: ACE=△P B: ACE=10B△f C: ACE=10B△f+△P D: KL=ΔPL/Δf

An ace

49乘以49加49乘49加49的巧算,

ACE是AreaControlError即区域控制误差的简称，其计算公式为（）。其中△PT为联络线功率交换误差，△f为频率偏差，β为偏差系数。 A: ACE=β△PT+△f B: ACE=β（△PT+△ C: D: ACE=β△PT/△f E: ACE=△PT+β△f

将530进行数字修约到数位的0.2单位，其结果为（） A:  520 B:  540 C:  530 D:  525

The earth is _____ of the moon. A: 49 times the size B: 49 times the large C: 49 times the small D: 49 the size

The earth is _______ of the moon. A: 49 times the size B: 49 times size C: 49 times as big as that D: 49 times big

The earth is ______ the moon. A: as 49 times big B: 49 times as bigger as C: 49 times as big as D: as big as 49 times

Katy,()without()authority,()contracted()to()buy()computer()equipment()from()Fox()Corp.()for()Ace()Corp.()Katy()told()Fox()that()Katy()was()acting()on()Ace's()behalf.()For()Ace()to()ratify()the()contract()with()Fox:()(1.0分)A.()Ace()must()know()all()material()facts()relating()to()the()contract()at()the()time()it()is()ratified.()B.()Ace()must()notify()Fox()that()Ace()intends()to()ratify()the()contract.()C.()Katy()must()have()acted()reasonably()and()in()Ace's()best()interest.()D.()Katy()must()be()a()general()agent()of()Ace.