单选题
break … into …
- to divide something into smaller parts
单选题
take action
- to do something
单选题
make sure
- to check something and be certain about it
单选题
do one's part
- do one's duty
单选题
prevent … from …
- to make something impossible for someone to do it
判断题
Matlab的含义为矩阵实验室（Matrix Laboratory）。
- 对
- 错
判断题
Matlab中变量名、函数名对字母大小写敏感。MAY、may表示不同变量。
- 对
- 错
判断题
Matlab中的变量可以不用定义直接使用。
- 对
- 错
单选题
在命令窗口中输入（ ），可以创建一个3 ×3矩阵。
>>A = [1, 2, 3; 4, 5, 6; 7, 10]
>>A = [1, 2; 4, 5, 6; 7, 8, 10]
>>A = [1, 2, 3; 4, 5, 6; 7, 8, 10]
>>A = [1, 2; 5, 6]
单选题
—
— It takes about 3 hours .
When will your train arrive?
How often do you take a train?
How long will the journey take ?