Because objects（ ） data and implementation, the user of an object can view the object as a black box that provides services.

单选题

Because objects（ ） data and implementation, the user of an object can view the object as a black box that provides services.

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判断题

物联网的英文名称为“Internet of Objects”。

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单选题

Some marvelous artists ___ the beneficial effect for people by beautiful objects.

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单选题

Many people fear bats because ( )

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单选题

What is the purpose of the radar reflector? A. To make objects less visible B. To make echoes weaker on the radarC. To make large echoes smaller D. To make small objects better visible

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