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【单选题】
对于选频直放站的频点改变是由()操作。A.
基站
B.
自动随施主信号频率变化而变化
C.
本地终端设置
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】---- Would you like to go travelling with me to New York, Benjamin? ---- Sorry, I’m busy, for the final examination is coming. So I ____________ hard throughout the next several weeks.
A.
have worked
B.
have been working
C.
work
D.
will be working
【简答题】__________ [A] maintenance [B] protection [C] care [D] attention
【简答题】A．Pottery and car maintenance. B．Car maintenance and Spanish conversation. C．Folk guitar and Spanish conversation D．Spanish conversation and keep-fit.
【简答题】[A] management [B] maintenance [C] conservation [D] protection
【单选题】听力原文：M: I've heard that you like music a lot. Do you like rock and roll? W: I like music but I do not like noise. Q: What does the woman mean? (19)
A.
The woman does not like the loud music.
B.
The woman does not like music.
C.
The woman has the same taste with the man.
D.
The woman used to like music.
【简答题】砷盐的检查中导气管中填充的醋酸铅棉花起什么作用?
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