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【简答题】
一台三相异步电动机,PN=5kW,UN=380V,COSφ=0.7,η=0.9,则IN=( )A。
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举一反三
【单选题】Consumers selling goods and services electronically to other consumers best describes:
A.
M-commerce.
B.
B2C e-commerce.
C.
disintermediation.
D.
C2C e-commerce.
【单选题】Consumers selling goods and services electronically to other consumers best describes:
A.
disintermediation.
B.
C2C electronic commerce.
C.
M-commerce.
D.
B2C electronic commerce.
【单选题】Younger consumers tend to go for the_______models.
A.
sophisticated
B.
considerate
C.
responsive
D.
reliant
【单选题】Selling stocks is advantageous for a company to ___ for tax reasons.
A.
go public
B.
go to public
C.
go to the public
D.
go publicly
【单选题】下列菜粉蝶的拉丁学名表达方式中，（ ）是正确的。
A.
Pieris rapae（L.）
B.
pieris rapae（L.）
C.
pieris Rapae（L.）
D.
Pieris Rapae（L.）
【单选题】Which of the following types of e-commerce involves consumers selling directly to consumers?
A.
C2C e-commerce
B.
B2C e-commerce
C.
C2B e-commerce
D.
B2B e-commerce
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