【单选题】【消耗次数：1】
（ ）不属于数据链路层的功能。
①
链路管理
②
路由选择
③
流量与差错控制
④
异常情况处理
参考答案：
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相关题目
【单选题】
在下列功能中，（ ）最好地描述了OSI模型的数据链路层。
①
保证数据正确的顺序、无错和完整
②
提供用户与网络的接口
③
处理信号通过介质的传输
④
控制报文通过网络的路由选择
【简答题】
数据链路层互联设备
【多选题】
医疗机构应当对哪些抗菌药物临床应用异常情况开展调查（ ）
①
使用量异常增长，半年来使用量排名，始终居于本机构异常前列的抗菌药物
②
临床经常超适应证、超剂量使用的抗菌药物
③
企业违规销售的抗菌药物
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药物严重不良反应频繁发生的抗菌药物
随机题目
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判断线上的内容是否正确：He did not __compromise___ easily, but was willing to accept any constructive advice for a worthy cause.
①
正确
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错误
【判断题】
判断线上的内容是否正确：___While___some people are motivated by a need for success, others are motivated by a fear of failure.
①
正确
②
错误
【判断题】
判断线上的内容是否正确：—Jack still can’t help being anxious about his job interview. —Lack of self-confidence is his___Achilles’ heel___, I am afraid.
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正确
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错误
【判断题】
判断线上的内容是否正确：These two chemicals ____interact_____ with each other at a certain temperature to produce a substance which could cause an explosion.
①
正确
②
错误
【单选题】
Wow. That’s a marvelous room. I’ve never known you’re so artistic!____________
①
Thank you for your compliments.
②
Don’t mention it.
③
Great, I am very art-conscious.
④
It’s fine.
【单选题】
Could you make an appointment with Doctor Wilson for me?____________
①
I cannot do it for you.
②
Im afraid all the appointments are filled.
③
You can have it.
④
Can I help you?
【单选题】
This box is too heavy for me to carry upstairs.__________
①
You may ask for help.
②
Let me give you a hand.
③
Please do me a favor.
④
I’d come to help
【单选题】
He cannot be tired _______ he has walked only half a mile.
①
since
②
whether
③
when
④
as long as
【单选题】
The idea of winning the eyes of the people around ____ powerfully to some youngsters, so they are eagerly identifying themselves.
①
defy
②
expel
③
attract
④
appeals
【单选题】
The top of the Great Wall is _______ for five horses to go side by side.
①
wide
②
wide enough
③
enough wide
④
so wide