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【单选题】
以下关于局域网环型拓扑特点的描述中，错误的是______。A.
结点通过广播线路连接成闭合环路
B.
环中数据将沿一个方向逐站传送
C.
环型拓扑结构简单，传输延时确定
D.
为了保证环的正常工作，需要进行比饺复杂的环维护处理
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反馈参考答案：
举一反三
【单选题】The best title for passage would be ______.
A.
Don't Be a Perfectionist
B.
Details and Major Objectives
C.
Importance of Adjustments
D.
Hard Work Plus Good Luck
【单选题】The passage is mainly talking about
A.
don't be a perfectionist.
B.
details and major objectives.
C.
importance of adjustments.
D.
hard work plus good luck.
【单选题】Go and put on your hat and don't be half an hour about it.
A.
不要花太长时间去戴帽子。
B.
去把帽子戴上，时间不要耽搁太长。
C.
去那戴帽子，不要花半个小时。
D.
花了半个小时戴帽子。
【单选题】The best title for this passage would be ______.
A.
Don't Be a Perfectionist
B.
Details and Major Objectives
C.
Importance of Adjustments
D.
Hard Work Plus Good Luck
【简答题】免疫功能分为三个 、 、 。
【简答题】不要害怕失败,尽管去尝试 Directions: For this part, you are allowed 30 minutes to write a short essay entitled Don't Be Afraid of Failures and Just Try . You should write at least 120 words but no more than 180 w...
【单选题】Don't be _______ and don't lose your heart.
A.
as a consequence
B.
ambience
C.
inhabitants
D.
excessive
E.
discouraged
F.
take advantage of
G.
drastic
H.
conservation
I.
appliances
J.
recycled
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