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试述胶带与汽车铁路联合运输的主要特点及使用条件？

答案

参考答案：

（1）可实现连续化作业，减少辅助作业工作量；

（2）运输物料的块度一般宜小于350mm，因此在胶带运输前应增设一套破碎设备；

（3）胶带运输角度，一般最大向上运输时18度，向下运输时15度。

适用于：

（1）服务年限较长运距较大的矿山；

（2）深度超过150m的大型深凹露天矿，由采场到地表的运输，采场内以汽车运输为主。

阅读理解

阅读理解。

阅读短文内容, 根据短文内容判断句子的正误.正确的涂"A", 错误的涂"B".

     My name is Jack. It was my birthday yesterday. An old lady stopped me on the street. "It's your birthday,"

she said."Let me look at your hand. Yes, you have a friend Mark, and you like ice-cream and cheese. Today

you will see fire (火) ; your mother will go away and a tiger will come to your house."

      I went to Mark's home. He and his sister made a birthday cake and lighted the candles for me.

     But I was thinking about the old lady's words. I wanted to go home, so I said goodbye to them and ran

home. Good, there was no fire, but Mum wasn't at home. Oh, no... I thought about the old lady's words again. Then Mum walked in with Mark and a box. "Here's your present. It's a lovely little dog and his name is Tiger,"

said Mum."But how about the fire and the old lady?" I asked."The fire is the candles," Mark smiled and said,

"and we hired (雇用) the old lady."

( )1. It was Jack's birthday yesterday.

( )2. Jack liked to have a tiger and some ice-cream for his birthday.

( )3. Mark and his sister made a birthday cake for Jack.

( )4. On his birthday, Jack got a little tiger as his birthday present.

(     )5. Jack's mother and his friend Mark hired the old lady.

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填空题

1说明]
函数int circle(int n，int d)判定正整数n的d进制表示形式是否是回文数。
[函数2.1]
int circle(int n,int d)
int s=0,m=n;
while (m)

(1) ;
m/=d;

return (2) ;

[函数2.2说明]
函数int trans(unsigned n，int d，char s[])将一个无符号整数转换为任意d进制数(2≤d≤16)。
[函数2.2]
#define M sizeof(unsigned int)*8
int trans (unsigned n,int d,char s[])
static char digits[]="0123 456789ABCDEF";
char buf [M+1];
int j，i=M;
if (d＜2 ||d＞16)

s[0]=’\0’;
return 0;

(3) ;
do

(4) ;
n/=d;
while (n) ;
for( (5) ); (s(j)=buf[j]!=’\0’;j++);
return j;
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