个人成长是指个体对自身成长的定义和评估。

（） is the oldest and fastest-growing form of e-commerce, which allows e-business to collaborate, partner, and share research and complex data with other businesses.

A.B2B
B.C2C
C.B2C
D.C2B

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In the initial stage of Alibaba, the （） threshold was taken to attract companies for free membership.

A.slow
B.fast
C.high
D.low

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