atop prep.

下面哪些关键字能影响SELECT语句返回的结果的行数？（） A: ATOP n B: BWHERE C: CORDER BY D: DDISTINCT

The margin plate is the（）. A: Aoutboard strake of plating on each side of an innerbottom B: Bouter strake of plating on each side of the main deck of a vessel C: Cplate which sits atop the center vertical keel D: Duppermost continuous strake of plating on the shell of a vessel

假定利用数组a[m]顺序存储一个栈，用top表示栈顶指针，用top= =-1表示空，该数组所能存储的栈的最大长度为m，当（）时，再做进栈运算会发生“上溢”。 A: Atop == m - 1 B: Btop == 0 C: Ctop == m - 2 D: Dtop == 1