Over the past decade the tourist industry ______ profoundly by the development of computer technology. A: is affected B: has affected C: was affected D: has been affected

How many rows of piles are generally set up in freestyle skating competition? How many piles per row? A: row 5 and 25 B: rows 2 and 18 C: rows 1 and 30 D: rows 3 and 20

<frameset rows=#>表示

If a is known to be a 2×3 matrix, then after executing a=a(:), ( ). A: a transforms to a column vector B: a transforms to 3 rows and 2 columns C: a transforms to 3 rows and 3 columns D: a transforms to 2 rows 3 and columns

rows是用来指定（）

<table rules=rows>,表示（ )。

What he said ____ the listeners. A: effected B: affected C: was effected D: was affected

Which of the followings is correct? A: NAVTEX is least likely to be affected by atmospheric disturbances. B: MF NBDP is least likely to be affected by atmospheric disturbances C: SES is least likely to be affected by atmospheric disturbances. D: HF NBDP is least likelv to be affected by atmospheric disturbances

假设数据集中“数量”是第5个字段,下面()能得到第3条记录的数量。 A: Ds.Tables[0].Rows[3][4].ToString B: Ds.Tables[0].Rows[2][4].ToString C: Ds.Tables[0].Rows[2][5].ToString D: Ds.Tables[0].Rows[3][5].ToString

If it is known that A is a 3×5 matrix, after executing A(:,1:2:3)=&#91;&#93;, ( ). A: A becomes row vector B: A becomes 3 rows and 3 columns C: A becomes 3 rows and 2 columns D: A becomes 2 rows and 3 columns