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【单选题】
下列有线传输介质中抗电磁干扰性能最好的是____。A.
同轴电缆
B.
双绞线
C.
光纤
D.
以上3种抗干扰性能都类似
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【简答题】What is the percentage of the respondents who think they are overcharged for the substandard property management?
【简答题】选出下列问题的答语。 ( ) 1. How many people are there in your family? ( ) 2. How many books do you have? ( ) 3. What would you like for lunch? ( ) 4. Are they teachers? ( ) 5. What's your gr...
【简答题】What percentage does thefresh water account for? Only___________percent．
【简答题】给下列问句选择答语。 ( ) 1. How many books do you have? ( ) 2. How many people are there in your family? ( ) 3. What would you like for lunch? ( ) 4. Are they teachers? ( ) 5. May I have a l...
【单选题】传统的酸奶发酵,参与的微生物主要有 ( )
A.
嗜热链球菌，粪链球菌，保加利亚乳杆菌
B.
嗜热链球菌，干酪乳杆菌
C.
嗜热链球菌，保加利亚乳杆菌
D.
嗜热链球菌，嗜酸乳杆菌
【单选题】What percentage of the world’s tea exports go to Britain? 查看材料
A.
Almost 15%.
B.
About 30%.
C.
Over 40%.
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