试题与答案

在市场经济条件下,产品价格一般以()为基础,供求关系是价格形成的主要影响因素。A.实

题型:单项选择题

题目:

在市场经济条件下,产品价格一般以()为基础,供求关系是价格形成的主要影响因素。

A.实际价格

B.利润价格

C.成本价格

D.均衡价格

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B解析:引起感染性休克的主要是革兰阴性杆菌。

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题型:单项选择题

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Given the many fingers pointed at governments in the wake of other disasters this year, it is hardly surprising that they are scrambling to respond to the threat posed by avian influenza. After confirmation this week that the HSN1 strain of bird flu, which has been spreading quickly in Asia, had been discovered in Romania and perhaps Greece, European Union foreign ministers convened an emergency meeting. President George Bush, still smarting from a torrent of criticism of his government’s clumsy response to Hurricane Katrina, has promised to rush out emergency plans for dealing with an outbreak of pandemic flu which have been stalled for years. Countries around the world are hurrying to stockpile the only current antiviral drug, Tamifln, which might be effective in saving lives in any pandemic or curbing its spread. The World Health Organisation is calling for an internationally coordinated effort. Health ministers from around the globe are due to meet next week in Canada to discuss what steps to take.

Is any of this eff6rt justified Or are politicians simply helping to feed public panic, and then covering themselves by promising to spend lavishly against a threat which may never materialize and to reduce a risk which they do not understand To ask these questions is not to counsel complacency, but to apply the kind of test which is required in any kind of disaster planning, not least because the world is an inherently dangerous place and it is impossible to plan against every possible disaster. With the media full of warnings of impending mass death, an overreaction is all too possible.

Which of the following remarks on our available antiviral medication would the author make()

A.Effective but poisonous

B. Harmful but populous

C. Meager and not reliable

D. Affordable and palatable

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题型:多项选择题

[说明]
假定用一个整型数组表示一个长整数,数组的每个元素存储长整数的一位数字,则实际的长整数m表示为:
m=a[k]×10k-2+a[k-1]×10k-3+…+a[3]×10+a[2]
其中a[1]保存该长整数的位数,a[0]保存该长整数的符号:0表示正数、1表示负数。
运算时先决定符号,再进行绝对值运算。对于绝对值相减情况,总是绝对值较大的减去绝对值较小的,以避免出现不够减情况。注意,不考虑溢出情况,即数组足够大。
[函数]
int cmp(int *LA, int *LB);
/*比较长整数LA与LB的绝对值大小*/
/*若LA绝对值较大返回正值,LA较小返回负值,相等则返回0*/
int ADD (int *LA, int *LB, int *LC)
/*计算长整数LA与LB的和,结果存储于LC中*/
/*注意:正数与负数的和相当于正数与负数绝对值的差*/
/*数据有误返回0,正常返回1*/

if(LA == NULL || LB == NULL || LC == NULL)return 0;
int *pA, *pB, i, N, carry, flag;
flag = LA[0] + LB[0];
switch(flag) /*根据参与运算的两个数的符号进行不同的操作*/
case 0:
case 2:
Lc[0] = LA[0];/*LA与LB同号,结果符号与LA(LB)相同*/
pA = LA;
pB = LB;
(1) ;
break;
case 1: /*LA与LB异号*/
/*比较两者的绝对值大小,结果符号与较大者相同*/
flag = (2) ;
if(flag > 0) /*LA较大*/
LC[0] = LA[0];
pA = LA;
pB = LB;

else if(flag < 0)(/*LB较大*/
LC[0] = LB[0];
pA = LB;
pB = LA;

else/*LA与LB相等*/
LC[0] = 0;
LC[1] = 0;
return 1;

flag = -1;
break;
default:
return 0;
break;
/*switch*/
/*绝对值相加减*/
/*注意对于减法pA指向较大数,pB指向较小数,不可能出现不够减情况*/
(3) ;
N = LA[1] > LB[1] LA[1] : LB[1];
for(i = 0; i < N; i++)
if(i >= pA[1])/*LA计算完毕*/
carry += flag * pB[i+2];

else if(i >= pB[1])/*LB计算完毕*/
carry += pA[i+2];

else
carry += pA[i+2] + flag * pB[i+2];

LC[i+2] = carry % 10;
carry /= 10;
if( (4) )/*需要借位,针对减法*/
LC[i+2] += 10;
carry--;

/*for*/
if( (5) )/*最高进位,针对加法*/
LC[i+2] = carry;
i++;

if(LC[i+1] == 0) i--; /*若最高位为零,针对减法*/
LC[1] = i;
return 1;
;/*ADD*/

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