由专职维修人员（包括技术人员）对某些特定的项目，如设备精度，某项或某功能参数等进行检查测定。该项点检是()。

A.日常点检

B.专项点检

C.定期点检

D.移动点检

开放作文。

     请根据下面提示，写一篇短文。词数不少于50。 

     In your spoken English class, your teacher shows you the following picture. You are asked to describe

the picture and explain how you understand it.

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