送电线路中导线在悬点等高的情况下，杆塔的水平档距与垂直档距（）。
A、相等；
B、不相等；
C、无关；
D、近似。
参考答案：A
根据句意，用所给单词的适当形式填空。
1. All flights have ______ (cancel) because of bad weather.
2. Thank you very much for your ______ (introduce).
3. This railway line _______ (connect) London to Edinburgh.
4. He had finally ______ (achieve) success.
5. We are ______ (pride) of what he did.
一般情况，非婚生子女，会因生父母结婚，而自然转为（）。
