题目内容

微信自媒体的特征是什么?

A. 内容人格化
B. 中心化
C. 病毒性传播
D. 互动性强

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_______ is the identifying code for a specific automobile.

The VIN serves as the car's fingerprint, as no two vehicles in operation have the ____ VIN.

A VIN is composed of _____ characters that act as a unique identifier for the vehicle.

VIN also can be __________ to track recalls, registrations, thefts and insurance coverage.

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