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【单选题】
过D点作直线 DE 使其平行于Δ ABC 及 V 面,下面关于作图的判断,哪个是正确的A.
(a) 错， (b) 正确
B.
(a) 、 (b) 都正确
C.
(a) 正确， (b) 错
D.
(a) 、 (b) 都错
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举一反三
【多选题】Which of the following factors affact the capacitor of a conductor system?
A.
Size of conductor
B.
Type of dielectric
C.
Structure of the system
D.
Voltage of the source
【单选题】The conductor and composer ____________by a crowd of people.
A.
are greeted
B.
is greeted
C.
greets
D.
have been greeted
【简答题】需求导向定价法包括哪三类
【单选题】In the case of a charged conductor, what is the character of the conductor?
A.
Different regions inside the conductor may be at different potentials.
B.
Different regions inside the conductor may have different electric fields .
C.
The potential must be zero everywhere inside the conductor .
D.
The electric field must be zero everywhere inside the conductor .
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