单相桥式全控整流电路带电感性负载时,每只晶闸管的导通时间比电阻性负载延长，导通角与触发角无关。
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poet and writer is to give us a report tomorrow.
A ;a
B. The;/
C. The;the
D. A;/
Is this umbrella I chose just now?
A. a
B. an
C. the
D. /
Reads are invited to their wedding.
A
B. An
C. The
D. /
As honest judge,he tried to protectpeople.
A. an;the
B. a;the
C. the;/
D. the;the
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