题目内容

简述细菌、大肠菌的菌落形态。

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学校教育和社会教育属于公共教育。

A. 正确
B. 错误

My Deratization Exemption Certificate will become ()on the 16th of September.

A. due
B. expire
C. lawful
D. non-effective

During (), the starting air valves should be closed to prevent the engine from turning.

A. overhaul
B. running
C. blowing down
D. All of the above are correct

信息系统的生命周期可以分成()。

A. 系统规划
B. 系统开发
C. 系统运行与维护
D. 系统更新

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