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【判断题】
整流器的功率因数是指变压器二次侧有功功率与视在功率的比值。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Which of the following is the first stage of the socialization process?
A.
prearrival
B.
encounter
C.
metamorphosis
D.
ritual
E.
commitment
【单选题】Which of the following is the first step in the marketing research process?
A.
developing a marketing information system
B.
defining the problem and objectives of the study
C.
developing the research plan
D.
implementing the research plan
E.
interpreting and reporting the findings
【单选题】In the first e-mail, what is the recipient advised to do?
A.
To ask Ms. Adamson for a gift code
B.
To visit the nearest Charlotte Maids
C.
To redeem the certificate online
D.
To schedule a time slot
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