电缆测试用来测试OSI模型的哪一层？（） A.应用层 B.会话层 C_爱下问搜题

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问题单项选择题

电缆测试用来测试OSI模型的哪一层？（）

A.应用层

B.会话层

C.网络层

D.物理层

答案

参考答案：D

填空题

用方框中所给词的适当形式填空

determine,once, detail, fare, cycle, persuade,
change one's mind, proper, insist, finally

1. He is so stubborn that no one can__________him to do anything.
2.A_________person always tries to finish the job, no matter how hard it is.
3._______she has made up her mind, nothing will _______ _______.
4.Is it_______for us to take off our hats in church?
5. He_______that we find the cause of the trouble as soon as possible. Everyone agreed.
6. Do you remember every __________ of the story you have just read?
7.I wanted to pay the train _______, but my friend insisted ; ________ I gave in.
8. She persuaded all of us to_________to work instead of taking the bus.

判断题

有些设备工作中会产生有害或有毒物质，这些物质对人或物会造成伤害。例如内燃机的废气、发电厂排烟以及电镀过程的废液等。