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【单选题】
Jack London was a famous American writer (作家). Be was born on January 12. 1876. in San Francisco (旧金山). California. His family was very poor. and Jack had 1o leave school to make money. He worked hard in many different jobs Later. Jack returned to school. hul he didn't stay krug. lie wrole. 'Lifu and pocketbook (袖珍书) were both too short. ' In 1897. he went 1o Alaska m find gold Instead. he find ideas them for his books and stories. He returned (返回) home and started Io write. His writings were successful (成功的). and he became rich and famous in his twenties. Jack London was not a happy man. however. In poor heath. he took his own life (自杀) in 1916. He was only 40 years old. Jack London wasA.
a musician
B.
a writer
C.
a basket hag player
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【简答题】下面程序段的运行结果是( )_. int main(){ int i,t,a[10]={25,40,29,8,17,6,15,4,3,2}; t=a[0]; for(i=0;i<10;i++) if(a[i]A. 29 B. 40 C. 15
【简答题】下面程序段的运行结果是( )_. int main(){ int i,t,a[10]={25,40,29,8,17,6,15,4,3,2}; t=a[0]; for(i=0;i<10;i++) if(a[i]A. 29 B. 40 C. 15 D. 2
【单选题】下面程序段的运行结果是( )。 int main() { int i,t,a[10]={25,40,29,8,17,6,15,4,3,2}; t=a[0]; for(i=0;i<10;i++) if(a[i] printf("%d\n",t); return 0; }
A.
29
B.
40
C.
15
D.
2
【简答题】下面程序段的运行结果是 _ _ _______ 。 int main() { int i,t,a[10]={25,40,29,8,17,6,15,4,3,2} ; t=a[0]; for(i=0;i<10;i ++ ) if( a[i]
【多选题】某机械厂锻造车间噪声很大，作业人员由于长时间接触高分贝噪声，导致听阈升高。为降低对作业人员的职业病危害，该厂应采取的工程措施有( )。
A.
升级改造设备，将普通齿轮改为有弹性轴套的齿轮，减弱噪声源
B.
采用减震、隔振、隔声等措施，以及安装消音器等，控制声源辐射
C.
优化工艺流程，将锻打改为摩擦压力加工，降低噪声发射功率
D.
配发并督促作业人员规范佩戴护耳器，如耳塞、耳罩、防声盔
E.
每两年对作业人员进行一次听力检测，把听力显著降低的人调离噪声环境
【简答题】与指令的助记符是 ,或指令的助记符是 ,与非指令的助记符是 ,或非指令的助记符是 。
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【简答题】下面程序段的运行结果是 _ _ _______ 。 int main() { int i,t,a[10]={25,40,29,8,17,6,15,4,3,2} ; t=a[0]; for(i=0;i<10;i ++ ) if( a[i]