简述电网规划设计时,可根据哪些因素将城网划分为若干个分区电网。
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分组交换网的基本工作方式是数模转换。
A. 正确
B. 错误
一般而言,雇主责任保险的承保基础是()
A. 期内发生式
B. 期内索赔式
C. 期满发生式
D. 期满索赔式
饱和粘性土的不排水剪抗剪强度线接近一条水平线。
A. 正确
B. 错误
To obtain accuracy in fixing by DF cross bearings,()should be used.
A. two stations,including one on the nearest coast
B. two stations,including one on the nearer coast
C. three stations,including one on the farthest coast
D. three stations,including one on the nearest coast