问题
单项选择题
全塑主干电缆屏蔽层连通电阻维护指标（20℃）是不大于（）欧姆/公里
A.1.6
B.2.6
C.3.6
D.4.6
答案
参考答案：B
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全塑主干电缆屏蔽层连通电阻维护指标（20℃）是不大于（）欧姆/公里
A.1.6
B.2.6
C.3.6
D.4.6
参考答案：B
| 阅读理解。 | |
| |
| 1. Your seat number is ________. | |
| A. 8, Row 6 B. 6, Row 8 C. 8, Row 1 D. 6, Row 1 | |
| 2. If you are late for the film, you'd better ________. | |
| A. walk around B. call up your friends C. make much noise D. walk into the theatre quietly | |
| 3. What should you do at the cinema? | |
| A. get a phone call B. sell your ticket C. check your seat number D. talk with your friends freely |
