【单选题】下面关于数据集BookMark 的说法那个是正确的?
A.
BookMark类型的变量是一个对象指针,需要用 BookMark Create来建立 BookMark,用BookMark.free 来释放
B.
BookMark本质上是一条记录类型,无须建立和释放
C.
Delphi中,一个数据集组件只能建立一个书签 BookMark
【单选题】We can learn from the second paragraph that words like 'bookmark', 'copy', and 'browser' are ______.
A.
words that have been learnt new meanings by the Internet
B.
words that became popular only a century ago
C.
words that are strong candidates to define the end of the century
D.
words that have the most frequency count in the Internet publications
【简答题】下列属于辩证法基本范畴的有( )。 A原因和结果 B必然和偶然 C运动与静止 D可能性与现实性
【单选题】饿极了的三毛喝了一桶( ),不久就头晕肚子疼了。
【判断题】在进行FIFO读数据时,需要在时钟上升沿使能RD_EN,并在RD_EN使能后的第一个时钟下降沿采集读出的数据。
【简答题】A.hypertext B.computation C.expectation D.bookmark