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【单选题】
自动调频调载装置的作用不可能是______。A.
保持电网电压的频率恒定
B.
按并联运行机组的容量成比例地进行负荷分配
C.
当接到指令，可自动转移负荷
D.
主发电机过载时自动分级将次要负载从电网切除
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反馈参考答案：
举一反三
【简答题】根据短文内容,从方框中选择适当的词,并用其适当形式填空。 f rom, by, always, big, but, other, home, help, different, wash What do people do in their free time? Some people like to stay at ##1## . Some would like to go for a picni...
【简答题】根据短文内容,从括号中选择适当的词,并用其适当形式填空。 (from, by, always, big, but, other, home, help, different, on) What do people do in their free time? Some people like to stay at _1_. Some would like to go for a picnic. _...
【简答题】What do people do in their free time? Some people like to stay at h 1 . Some would like to go for a picnic. 2 (其他的)like to do sports. My friend Bruce works hard in an office 3 Monday to Friday. On wee...
【单选题】Why does the man have a lot of stress?
A.
He couldn' t work out at the gym recently.
B.
His things have gone wrong.
C.
His boss hates him.
D.
His car has broken down.
【简答题】胆囊穴的定位是在小腿外侧上部，当腓骨小头前下方凹陷处直下（ ）
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