[名词解释] 附属元素(accessory element)
[名词解释] 相容元素(compatible element)
[名词解释] 分散元素(dispersed element)
[名词解释] 稀有元素(rare element)
[名词解释] 微量元素(trace element, microelement)
[名词解释] 不相容元素(incompatible element)
[名词解释] 微量元素(trace element或microelement)
[单选题] 在XML中,元素book 的声明语句如下:<!ELEMENT book (title,price+,author?,borrow*)>该声明语句表明,元素book中子元素 (62) 至少出现一次。A. title B. price C. author D. borrow
[名词解释] 小调(Minor mode)
[单选题]A. minor-party or independent candidate can draw votes away from the major-party nominees but ______almost no chance of defeating them.A. getsB. haveC. standsD. rises