根据信号线的多少确定 PVC 管的多少，进而确定 槽的宽度。
查看答案
施工组织设计可分为标前和标后施工组织设计。
A. 对
B. 错
电源线与通信线不得穿入同一根管内。
A. 对
B. 错
A(n) _______ presentation creates a happy atmosphere and makes the audience smile, relax, and enjoy.
A. informative
B. persuasive
C. inspiring
D. entertaining
In a _______ speech you argue a point and convince the audience to accept your proposal.
A. informative
B. persuasive
C. inspiring
D. entertaining
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