A: RANK1＜br＞
B: RANK2＜br＞
C: RANK3＜br＞
D: RANK4＜br＞
举一反三
- If A and B are m × n matrices then have the same rank, then the rank of AB must equal the rank of BA.
- 在排位函数RANK中，例如：=RANK(G2，$G$2：$G$11),第二个参数属于什么引用？
- 已知矩阵A=[1 2 3;4 5 6;7 8 9],计算矩阵A的行列式及逆矩阵，应该调用什么函数指令？ A: det(A) inv(A) B: rank(A) inv(A) C: det(A) rank(A) D: eig(A) rank(A)
- Let A be an m×n matrix, then ( ). A: AAT =ATA. B: if rank(A) = m, then AT A is invertible. C: if rank(A) = n, then AAT is invertible. D: if rank(A) = n, then AT A is invertible.
- The<br/>_____ is the highest rank of grammatical unit while the _____ is the<br/>minimum or the lowest rank. A: sentence…<br/>word B: sentence…<br/>morpheme C: clause…<br/>word D: text…<br/>morpheme
内容
- 0
以下语句错误的是() A: LECT rank, AVG(salary) FROM people HAVING AVG(salary) > 1000 GROUP BY rank; B: SELECT rank, AVG(salary) FROM people GROUP BY rank HAVING AVG(salary) > 1000 C: SELECT rank, AVG(salary) FROM people HAVING AVG(salary) > 1000 GROUP BY rank; D: SELECT AVG(salary) FROM people GROUP BY rank HAVING AVG(salary) > 1000; E: SELECT rank, AVG(salary) FROM people GROUP BY rank WHERE AVG(salary) > 1000;
- 1
Excel中RANK函数用来(<br/>)。 A: 求和 B: 求平均值 C: 求最大值 D: 排名
- 2
需要对(A1:A50)单元格区域中的数据进行排名,以下哪个公式运用正确。 A: =Rank(A1,A1:A50) B: =Rank(c2,c2:$c$150) C: =Rank(c2,$c$2:$c$150) D: Rank(c2,$c$2:$c$150)
- 3
在排位函数RANK中，例如
- 4
在ORACLE中，rank()函数和dense_rank()函数的差别是（选一项） A: rank函数和dense_rank函数都没有跳跃 B: rank函数和dense_rank函数都有跳跃 C: rank函数有跳跃 dense_rank函数没有跳跃 D: rank函数没有跳跃 dense_rank函数有跳跃