The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature. Indeed, I regard this as the major discovery of the past hundred years of biology. It is, in its way, an illuminating piece of news. It would have amazed the brightest minds of the 18th century Enlightenment to be told by any of us how little we know and how bewildering seems the way ahead. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science and the human intellect, In earlier times, we either pretended to understand how things worked or ignored the problem, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Be- cause of this, we are depressed. It is not so bad being ignorant if you are totally ignorant; the hard thing is knowing in some detail the reality of ignorance, the worst spots and here and there the not-so-bad spots, but no true light at the end of the tunnel nor even any tunnels that can yet be trusted but we are making a beginning and there ought to be some satisfaction. There are probably no questions we call think up that can't be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can't think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers if we keep at it long enough, and pay attention.
According to the author, really good science ______.
A.will bring about surprising and disturbing results
B.will produce results which cannot be foreseen
C.will help people to make the right choice in advance
D.would surprise the brightest minds of the 18th century Enlightenment
第1題
以下程序的輸出結(jié)果是_[13]_______
#include <stdio.h>
#include <string.h>
char *fun(char *t)
{ char *p=t;
return(p+strlen(t)/2);
}
main()
{ char *str="abcdefgh";
str=fun(str);
puts(str);
}
第2題
以下程序的輸出結(jié)果是 【 11 】。
#include <stdio.h>
main()
{ char *ch[4]={"red',"green","blue"};
int i=0;
while(ch[i] )
{ putchar(ch[i][0]); i++;)
}
第3題
下面程序的輸出結(jié)果是______。 #include<stdio.h> main() { char ch[7]={"12ab56"}; int i,s=0; for(i=0;ch[i]>='0'&&ch[i]<='9';i+=2) s=10*s+ch[i]-'0'; printf("%d\n",s); }
A.1
B.1256
C.12ab56
D.1 2 5 6
第4題
有以下程序:
include<stdio.h>
main()
{char ch[3][5]={"AAAA","BBB","CC"};
printf("%s\n",ch[l]);
}
程序運(yùn)行后的輸出結(jié)果是()。
A.AAA
B.CC
C.BBBCC
D.BBB
第5題
下述程序的輸出結(jié)果是()。
#include<stdio.h>
main
{ char ch[2][5]-{”1234”,”5678”},*p[2];
int i,j,s=0;
for(i=0;i<2;i++)
p[i]=ch[i];
for(j=0;j<2;j++)
{ s=p[i][j]一'0';
printf("%d",s);}
}
A.6357
B.6135
C.1357
D.691357
第6題
下列程序運(yùn)行后的輸出結(jié)果是______。
#include<stdio.h>
main()
{ char ch[7]="56bcl2";
int i,s=0;
for(i=0;ch[i]>='0'&&ch[i]<='9';i++)
s=10*s+ch[i]-'0';
printf("s=%d\n",s);
}
第7題
下列程序段的輸出結(jié)果是______。
#include"stdio.h"
main()
{ char b[]="Hello,you";
b[5]=0;
printf("%s\n",b);
}
第8題
A.67,C
B.B,C
C.C,D
D.不確定的值
第9題
下面程序的運(yùn)行結(jié)果是______。
#include<stdio.h>
main()
{ char ch[7]=("65ab21");
int i,s=0;
for(i=0;ch[i]>='0'&&ch[i]<'9'; i+=2)
s=10*s+ch[i]-'0';
printf("%d\n",s);
}
第10題
下列程序的輸出結(jié)果是()。 #include<stdio.h> main() { char ch[2][5]={"1234","5678"},*p[2]; int i,j,s=0; for(i=0;i<2;i++) p[i]=ch[i]; for(i=0;i<2;i++) for(j=0;p[i][j]>'\0',j+=2) { s=p[i][j]-'0'; printf("%d",s);) }
A.6357
B.6135
C.1357
D.691357
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