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【单选题】
(单选)( )邮件列表中,只有经过邮件列表管理者许可的电子邮件,才能发送给邮件列表的其他用户。
A.
公开类型
B.
封闭类型
C.
管制类型
D.
权限类型
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参考答案：
举一反三
【简答题】请听下面一段材料，回答第1至4题。 1. How old is the table? [     ] A. One hundred years old. B. Two hundred years old. C. Three hundred years old. 2. What is the table made of? [     ] A. Wood. B. Steel. C. Glass. 3....
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【判断题】商定活动日程时,对方提出与原日程不符且涉及接待规格的要求,地陪按照旅游者的要求,尽量予以满足。对于规格升级的,地陪说明情况,收取相关费用。
A.
正确
B.
错误
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【简答题】It was Mr. Hill’s birthday that day. He was one hundred years old and many people came to小题1: ( he ) birthday party. A reporter (记者) came to the party and asked him a few questions.“Many people want 小...
查看完整题目与答案
【简答题】Directions: Ther e are 20 blanks in the following passage. For each blank there are four choices marked A , B , C and D. You sh ould choose the ONE that bes t fits into the passage. Then mark the corr...
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【单选题】( )光纤的模间色散很小,适用于远程通信。
A.
多模
B.
单模
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【多选题】光缆通信中，单模光纤的传输特点有（ ）
A.
模间色散很小
B.
传输频带比多模窄
C.
适用于远程通信
D.
只能与激光二极管光源配合使用
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【单选题】手工水研磨可能产生的主要喷涂缺陷是( )。
A.
失光
B.
砂纸痕透现
C.
痱子和漆膜脱落
D.
针孔过多
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【简答题】2 Interestingly , ideas about the stages of life are changing. 3 In previous times, people didn't have a solid idea of childhood as being separate from hood . A hundred years ago, no one thought ...
查看完整题目与答案
【单选题】光缆通信中。不属于单模光纤的传输特点有（ ）。
A.
模间色散很小
B.
传输频带比多模窄
C.
适用于远程通信
D.
只能与激光二极管光源配合使用
查看完整题目与答案
【简答题】完形填空 Vitamins(维生素)  are a discovery of the 20th century. A hundred years 1 , no one knew anything 2 them. The vitamins are 3 by letters of alphabet. Vitamin A 4 by the eyes. There is vitamin A in milk...
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相关题目：
【简答题】请听下面一段材料，回答第1至4题。 1. How old is the table? [     ] A. One hundred years old. B. Two hundred years old. C. Three hundred years old. 2. What is the table made of? [     ] A. Wood. B. Steel. C. Glass. 3....
查看完整题目与答案
【判断题】商定活动日程时,对方提出与原日程不符且涉及接待规格的要求,地陪按照旅游者的要求,尽量予以满足。对于规格升级的,地陪说明情况,收取相关费用。
A.
正确
B.
错误
查看完整题目与答案
【简答题】It was Mr. Hill’s birthday that day. He was one hundred years old and many people came to小题1: ( he ) birthday party. A reporter (记者) came to the party and asked him a few questions.“Many people want 小...
查看完整题目与答案
【简答题】Directions: Ther e are 20 blanks in the following passage. For each blank there are four choices marked A , B , C and D. You sh ould choose the ONE that bes t fits into the passage. Then mark the corr...
查看完整题目与答案
【单选题】( )光纤的模间色散很小,适用于远程通信。
A.
多模
B.
单模
查看完整题目与答案
【多选题】光缆通信中，单模光纤的传输特点有（ ）
A.
模间色散很小
B.
传输频带比多模窄
C.
适用于远程通信
D.
只能与激光二极管光源配合使用
查看完整题目与答案
【单选题】手工水研磨可能产生的主要喷涂缺陷是( )。
A.
失光
B.
砂纸痕透现
C.
痱子和漆膜脱落
D.
针孔过多
查看完整题目与答案
【简答题】2 Interestingly , ideas about the stages of life are changing. 3 In previous times, people didn't have a solid idea of childhood as being separate from hood . A hundred years ago, no one thought ...
查看完整题目与答案
【单选题】光缆通信中。不属于单模光纤的传输特点有（ ）。
A.
模间色散很小
B.
传输频带比多模窄
C.
适用于远程通信
D.
只能与激光二极管光源配合使用
查看完整题目与答案
【简答题】完形填空 Vitamins(维生素)  are a discovery of the 20th century. A hundred years 1 , no one knew anything 2 them. The vitamins are 3 by letters of alphabet. Vitamin A 4 by the eyes. There is vitamin A in milk...
查看完整题目与答案
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