问题
单项选择题
RRU与铁塔用不小于（）的地线与铁塔塔身连接，长度须不小于1m。
A.25mm
B.10mm
C.15mm
D.20mm
答案
参考答案：A
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RRU与铁塔用不小于（）的地线与铁塔塔身连接，长度须不小于1m。
A.25mm
B.10mm
C.15mm
D.20mm
参考答案：A
| 情景交际。 | |
| A: Good morning! Can I help you? B: Yes, please. 1 A: We have many popular kinds, like Motorola, Nokia and so on. B: I prefer the things made in China. 2 A: Yes, TCL is also popular. What about this one? 3 B: Well, I don't want the newest. I'd like a practical (实用的) one. A: This one looks nice and works well. B: 4 A: 1,350 yuan. B: 5 But I'll take it.
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