代码import math;x=math.log(3)执行后,则( )
A: x=1
B: 都不对
C: x<1
D: x>1
A: x=1
B: 都不对
C: x<1
D: x>1
举一反三
- 下面那个语句可返回x的整数部分 A: import math math.ceil(x) B: from math import ceil ceil(x) C: import math math.trunc(x) D: import math math.fabs(x)
- 求不定积分[img=115x46]17da65382f8e1b9.png[/img]; ( ) A: x - (5*log(x + 1))/4 - (3*log(x - 3)) B: (5*log(x + 1))/4 - (3*log(x - 3)) C: x - (5*log(x + 1))/4 - (3*log(x - 3))/4 D: (5*log(x + 1))/4 - (3*log(x - 3))/4
- 执行下面代码后,最后输出的x值为( ) x = 1 while x < 3: x = x + 2 print(x) A: 1 B: 2 C: 3 D: 4
- 求不定积分[img=112x35]17da6538063a9e4.png[/img]; ( ) A: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/ B: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4))/8 C: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4)) D: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/8
- x=1; y=2; a=--y>x? ++x:--y<--x?x:y; 执行完以上代码后,a=1