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【单选题】
45硅整流发电机的端电压随转速变化而变化 ,必须装上( ),保证负载得到较稳定的电压。A.
电容
B.
电阻
C.
调节器
D.
变压器
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反馈参考答案：
举一反三
【简答题】西式烹饪有哪些主要特点？
【单选题】I must congratulate you ____ the excellent design of the new bridge.
A.
with
B.
at
C.
on
D.
of
【简答题】就地浇筑法的概念及其使用条件?
【单选题】I must congratulate you ________ the excellent design of the new bridge.
A.
with
B.
of
C.
at
D.
on
【简答题】John is 14 years old. He is a student of Grade Eight. He was a very active and happy boy two years ago. But everything changed after he started to play computer s. He never plays basketball or foo...
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