在Excel的工作表中,假定C3:C8区域的单元格一半是文本一半是数值,则函数“=count(C3:C8)”的值为()。
A.3
B.6
C.8
D.5
参考答案:B
圆弧插补用半径编程时,当圆弧所对应的圆心角大于180º时半径取负值。()
In the circular region shown above, sections A and B represent 3/8 and 5/11, respectively, of the area of the circular region. Section C represents what fractional part of the area of the circular region ?()
A.A
B.B
C.C
D.D
E.E