The addition and subtraction of vectors must be in the same length.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- The addition and subtraction of vectors must be in the same length.
- The general statement must not contain information that is too specific or too long in length. A: 正确 B: 错误
- Which of the following is not a binary operation on n? A: subtraction B: division C: addition D: multiplication
- And by the mid-1970s, as the economy declined, hemlines dropped to mid-calf length and maxi (ankle) length.（ ）
- 数字减影血管造影基于（ ）运算What operation does digital subtraction angiography use A: 加法Addition B: 减法Subtraction C: 乘法Multiplication D: 除法division