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【单选题】
单相变压器的次级电压有效值为10V,经桥式整流电容滤波后,负载上的电压平均值约为( )。A.
10V
B.
12V
C.
14V
D.
16V
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【单选题】How does Alex Baker plan to develop the magazine next year?
A.
By changing its design.
B.
By advertising it more widely.
C.
By expanding its distribution.
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【单选题】How does the design of the British House of Commons affect how the members interact?
A.
They sit in a circle so all members are equal and each party is equal.
B.
They sit on benches, shoulder to shoudler, making them feel like equals.
C.
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D.
Everyone stands so that people are encouraged to finish voting faster.
【单选题】What does the passage mainly deal with?
A.
How to design attractive buildings.
B.
Architects need to understand public tastes.
C.
How lay people view buildings.
D.
Different tastes between architects and the public.
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