[音频]Questions 22 to 25 are based on the passage you have just heard.What do NASA scientists want to learn about?
A. How animals deal with lack of gravity.
B. ow mice interact in a new environment.
C. How low gravity affects the human body.
D. How mice imitate human behavior a space.
查看答案
What does the passage say about the mice at the beginning of the experiment?
A. They found the space in the cage too small to stay in.
B. They found it difficult to figure out where they were.
C. They were not use to the low-gravity cnvironment.
D. They were not sensitive to the changed environment.
What did the scientists find about the mice from the experiment?
A. They changed their routines in space.
B. They began to eat less after some time.
C. They behaved as if they were on Earth.
D. They repeated their activities every day.
常对数组进行的两种基本操作是( )。
A. 建立和删除
B. 索引和修改
C. 插入和修改
D. 插入和索引
二维数组A的每个元素是由6个字符组成的字符串，行下标的范围从0~8，列下标的范围是从0~9, 则存放数组A至少需要（）个字节。拓展题：若A按行优先方式存储，元素A[8][5]的起始地址与A按列优先方式存储的（）元素的起始地址一致。
A. 90
B. 180
C. 240
D. 540
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