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【单选题】
要使放大电路输出电压稳定，输入电阻提高，电路中选用（ ）负反馈。A.
电压串联
B.
电流串联
C.
电压并联
D.
电流并联
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反馈参考答案：
举一反三
【单选题】In each inflatable rescue boat, what piece of equipment is provided to make quick, emergency, temporary repairs to a large hole in a raft?
A.
No equipment is provided.
B.
Glue and rubber patches.
C.
Several various-sized sealing clamps.
D.
Self-adhesive rubberized canvas patches.
【简答题】任何复杂的汽车电路其原理都基本相同 , 都是由两个 和 组成。
【简答题】任何复杂的汽车电路，其原理都基本相同，都由（）和（）组成。
【单选题】In each inflatable rescue boat, what piece of equipment is provided to make quick, emergency, temporary repairs to a large hole in a raft?______.
A.
No equipment is provided
B.
Self-adhesive rubberized canvas patches
C.
Glue and rubber patches.
D.
Several various-sized sealing clamps
【判断题】A topic is provided to students about what you have to perform the discussion and this is a topic-based group discussion.
A.
正确
B.
错误
【单选题】According to the advertisement, what is provided on the Web site?
A.
A coupon code
B.
A critic's review
C.
A list of features
D.
A free trial version
【单选题】What is provided to alternators since current protection cannot be used?
A.
Reverse power protection
B.
Current protection
C.
Power protection
D.
Voltage protection
【单选题】In each inflatable liferaft，what equipment is provided to make quick，emergency，temporary repairs to large holes in the raft? （）
A.
No equipment is provided
B.
Glue and rubber patches
C.
Several various-sized sealing clamps
D.
Self-adhesive rubberized canvas patches
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