请选出适用于购物的句型。
A. I’m looking for a jacket.
B. How much is it?
C. What do you want to buy?
D. Have you ever been to Beijing?
请选出适用于观光的句型。
A. Where did you go for your summer vacation?
B. Have you ever been to New York?
C. What is there to see in the ancient city?
D. It’s the wrong size.
Zipf原则是指典型的频率分布是高度偏斜的,存在很多频繁元素。()
A. 对
B. 错
在数据流模型中,从数据流中可以计算简单的函数,如最大值、最小值、求和等,且处理这些函数时通常使用单个寄存器s。()
A. 对
B. 错
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