钢梁强度计算一般包括()、()、()、()计算四个方面。
参考答案:弯曲正应力、剪应力、局部承压应力和折算应力
用方框中所给单词的适当形式填空。
A: Jane, look at this ad. They 1 a reporter.
B: Yeah. But I 2 want to be a reporter.
A: Why? If you are a reporter, you can 3 many people.
B: But it's very busy. I don't like it.
A: 4 do you want to be?
B: I want to be a 5 .
A: Really? That 6 very interesting .
B: Yes. But 7 it's a little dangerous. Your brother is 8 actor, right?
A: Yes, he is. He likes his 9 very much. He thinks it's an 10 job.
下列给定程序中,函数fun()的功能是:根据以下公式求n的值,并作为函数值返回。例如,给指定精度的变量eps输入 0.0005时,应当输出Pi=3.140578。 n/2=1+1/3+1/3*2/5+1/3*2/5*3/7+1/3*2/5*3/7*4/9…… 请改正程序中的错误,使它能得出正确的结果。 注意:不要改动main函数,不得增行或删行,也不得更改程序的结构。 试题程序: #include <conio.h> #include <stdio.h> #include <math.h> double fun(double eps) double s,t; int n=t; s=0.0; /*************found**************/ t=1; /*************found**************/ while(t>eps) s+=t;t=t*n/(2*n+1);n++; /*************found**************/ return (s); main() double x; printf("\nPlease enter a precision: "); scanf("%1f",&x); printf("\nPi=%1f\n ",fun(x));