计算π近似值的一个公式是，某人编写下面的程序用此公式计算并输出π的近似值： Private Sub Command1_Click PI=1 Sign=1 n=20000 For k=3 To n Sign=-Sign PI=PI+Sign/k Next k Print PI*4 End Sub 运行后发现结果为3.22751,显然，程序需要修改。下面修改方案中正确的是？/ananas/latex/p/415067

返回0~1的随机数的数学函数是（） A: RAND() B: SIGN(x) C: ABS(x) D: PI()

Which of the following is not pyramidal sign? A: Gonda sign B: Hoffmann sign C: Babinski sign D: Chaddock sign E: Oppenheim sign

Mary______ as an office receptionist with China Airlines. A: sign in B: sign to C: sign up D: sign at

以下程序段的运行结果是______。a=0if a <; 0: sign="-"else: sign="+"print (sign) A: + B: - C: sign D: 无输出

They managed to ___ all the best performers. A: sign B: sign up C: sign up for D: enter for

????.jpgWhich sign blow has the same meaning as the sign above?

The sign of London underground is the same as the sign of London bus stops.

In which of the following country is the OK sign considered as an insulting sign?

在国内大型活动和正式场合中，手语翻译要使用（ ）进行翻译( ) is used for sign language interpretation at major events and official events in the country. A: 自然手语 B地方手语 C国际手语 D中国手语Natural sign language Local sign language C. International sign language D. Chinese sign language B: 地方手语 C国际手语 D中国手语Local sign language International sign language D. Chinese sign language C: 国际手语 D中国手语International sign language Chinese sign language D: 中国手语Chinese sign language