问题
判断题
在系统事故情况下，允许220kV及以下系统电压相差30%、频率相差0.5Hz进行同期并列。
答案
参考答案：错
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在系统事故情况下，允许220kV及以下系统电压相差30%、频率相差0.5Hz进行同期并列。
参考答案：错
| 从方框中选择正确的句子补全对话。其中有两项是多余的。 | |
| A: 1______. B: Could you tell me where the scarf is? A: Sure, 2______. B: Thank you. Wow, there are a lot of beautiful scarves here. C: Yes, they are all very beautiful. This blue one fits on you very well. B: 3______. C: Yes, please. B: Mm, it looks very nice. 4______. C: It's twenty yuan. B: 5______. Here is the money. C: Thank you. Welcome back again.
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