题目内容

停显液的作用是把显影液的作用停止。

A. 对
B. 错

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简答题 Write a memo in about 50 words.You are a department manager. A new copying machine has been installed in your department. Write a memo to tell your staff members to be careful in using the newly-installed photocopier. Your instructions should include the following particulars:·Ask them not to use it for too long at a time. ·Ask them to switch off the machine after use.·Encourage them to offer suggestions for the care of the machine.

如果某滤光镜阻挡了某色光那将意味着这种光的色调在洗印好后会被加深。

A. 对
B. 错

一般ISO400的胶片比ISO100的胶片颗粒性要小。

A. 对
B. 错

简答题简述秘书知识结构的主要内容。