在皮带上采样，其子样数多少与皮带参数没有关系。
参考答案：错
--- Walking an hour every day is good for our health.
--- Exactly. However, ________.
A．I love doing it very much.
B．I don’t hate it.
C．Climbing a mountain is also good.
D．I don’t like to do it every day.
常见的电气误操作有哪些类型？
