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【判断题】
春秋战国时期的《周礼》《仪礼》《礼记》是我国最早的礼仪学专著。A.
正确
B.
错误
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皮皮学刷刷变学霸
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【单选题】关于 标记的叙述,错误的是( )。
A.
使用标记可以控制页面布局
B.
使用标记可以设置表格的对齐方式
C.
标记的cellspacing属性可以使单元格更大
D.
标记的width属性值既可以是百分比,也可以是具体的数值。
【单选题】From the study by the Pew Research Centers Internet & American Life Project, we know that______.
A.
something about the Internet lets teenagers suppress their anger
B.
social networks are no longer popular among teenagers
C.
cruelty and meanness prevail among teenagers on social networking sites
D.
few of the teenagers surveyed report positive feelings toward the Internet
【单选题】Compared with their 1960s counterparts, the undergraduates in Ms. Blum's research prefer to ______.
A.
challenge the notion of authorship and originality
B.
establish a unique and authentic identity
C.
have a try on many different personas
D.
do more social work by Web-linking
【简答题】将十进制数56转换为二进制数为__________B,八进制数为(___________)8,十六进制数为_____________H。
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