皮皮学，免费搜题
登录
搜题
【单选题】
下述哪些属于集线器的缺点的是________。A.
集线器不能延伸网络可操作的距离
B.
集线器不能过滤网络流量
C.
集线器不能在网络上发送变弱的信号
D.
集线器不能放大变弱的信号
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】The cat, sat on the mat.
【单选题】The little boy _____on the mat ____ to his parents that blackbirds had _____their eggs on Mars．
A.
lay; lying; lied
B.
lied; lied; lied
C.
laid; laid; laid
D.
lying; lied; laid
【简答题】听力原文：All the great discoveries and advances of the last 100 years have been in the material world. We should spend much more time looking inwards to see whether there's any element which no technologi...
【简答题】The greatest feeling in the world comes not from receiving presents, or even getting an A on the math test you studied so hard for. Rather, it when you hand a cup of hot coffee to that older man sitti...
【单选题】What occurred before Baju went to sleep?
A.
He felt uncomfortable to lie on the mat and complained.
B.
He wanted his mother to move as close to him as possible.
C.
He learned a lot about the legendary hero Devaka.
D.
His father returned soon.
相关题目：