题目内容

C语言大小写不敏感。

A. 对
B. 错

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Keil C51中无符号整型数据占用2个字节存储空间。

A. 对
B. 错

51单片机I/O引脚的“灌电流”比“拉电流”大。

A. 对
B. 错

Choose the following words to fill in the blanks. (答案只填字母)(1)_____ a car(2) _____ glass(3)_____ grain into flour (4) _____ garments(5)_____ thread into cloth(6) _____ electrical appliancesA. assembleB. process

Processing trade refers to the production and operation activities of enterprises that import all or part _______ of finished products and then transport them out of the country after processing and assembling. (多选)

A. raw materials
B. spare parts
C. components
D. packaging materials

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