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【判断题】
影响光纤带宽的主要因素是光纤的色散，而光纤的色散越小，光纤的带宽越宽。A.
正确
B.
错误
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举一反三
【单选题】—Which is the biggest number of the four? —________. [ ]
A.
One-third
B.
Two-thirds
C.
A half
D.
A quarter
【单选题】After several nuclear disasters, a______has raged over the safety of nuclear energy.
A.
quarrel
B.
suspicion
C.
verdict
D.
controversy
【简答题】阅读理解。 The meeting lasted three hours. Mr. Jackson looked at the clock on the wall. It was a quarter to eight. 'The last bus started fif minutes ago,' thought the man, 'It means I'll have to stay i...
【简答题】It was twenty years ago and I was living in Paris. I had a tiny apartment in the Latin Quarter overlook a cemetery, and I was 【1】______ earning barely little money to keep body and soul together. She ...
【简答题】俗话说眼睛是心灵的窗户．同学们，我们每天从外界得到的信息中，大多数要通过眼睛来获取，那么，你了解眼睛的结构以及眼睛获取信息的过程吗？如图是人眼球的结构模式图， 请据图回答下列问题： （1）外界物体反射来的光线，依次通过折光系统的[______]______、[______]______、和[______]______、玻璃体、到达[______]______，形成物像． （2）眼球中能将光线刺激转...
【单选题】航空转运作业流程中的邮件总包接收包括接收航方交来的航空邮件总包、接收区域快速邮路交来的发航邮件总包、接收局站盘驳汽车的邮件和（）。
A.
接收火车转航的邮件
B.
接收支局交来的邮件
C.
接收其它各类邮件
D.
接收信息
【简答题】Three rich ladies met every day by the river. They sat there and talked the w 71 day. Once, they quarreled. One of them said, 'Look, how white and beautiful my hands are!' A 72 one said, 'My hands...
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