皮皮学，免费搜题
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搜题
【单选题】
In the third paragraph, the author is ______.A.
discussing how we grow and have new experiences every day
B.
talking about learning to modify emotions through operant conditioning
C.
concentrating on learning by reading, watching television, interacting with people, and so on
D.
using examples to further illustrate learning through classical conditioning
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皮皮学刷刷变学霸
举一反三
【单选题】用公式如何表示电压与电位的关系
A.
U AB =V A -V B
B.
U AB =V B -V A
C.
.U AB =V A -V 0
D.
U AB =V B -V 0