在CSS中,代码“margin:10px 0;”表示左右间距是10px,上下间距是0。 ( ) A. 对 B. 错
A.
正确
B.
错误
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【简答题】What is the best type of online lecture? A) One with no accompanying slides. B) One that is simply put online as text. C) One without video or audio. D) One with interaction during the lecture