【单选题】听力原文:When will the order be delivered? (11)
【简答题】9 水的密度为1000 ,2L水的质量和重量是多少?
【简答题】On May 21, 2000, some American scientists were working at the computers to look for information they needed . Suddenly they saw a lot of very bright red spots crossing the computers’ screens. At the s...
【单选题】下列关于存货发出计价方法的表述中不正确的是( )。
A.
物价在持续下降时,企业采用先进先出法会低估企业当期利润
B.
月末一次加权平均法不利于存货成本的日常管理与控制
【单选题】关于哈夫曼树、最优二叉树、哈夫曼算法,有以下说法: ①最优二叉树的形态不唯一,但是其WPL值是唯一确定的。 ②哈夫曼树一定是最优二叉树,但最优二叉树不一定由哈夫曼算法来构造。 则______。
【单选题】Mike has some experience with computers because ________.
B.
he is interested in computers