题目内容

Please translate the following report into Chinese.To:Mrs. Zhao, Dean of Foreign Language DepartmentFrom:Mr. Niu,Teaching SecretarySubject:Buying computers and videotape recordersDear Mrs. Zhao: Upon the request of the Equipment Division of the college,we have inspected the sound laboratory of the English Department and found its present equipments unsatisfactory to students, because there are forty computers in our laboratory,but the students are almost ten times as many. The laboratory material is so short that the situation has to be improved at once. In order to enhance the effect of experiments, it is hereby recommended that twenty computers and ten videotape recorders be bought and issued to the laboratory. Niu Xinhua

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运行下面程序,结果正确的是()#include int main ( ){ char x,y,z;x=getchar();y=getchar();z=getchar();putchar(x); putchar(y); putchar(z);return 0;}输入:O↙K↙!↙

A. 结果:OK!
B. 结果:OK
C. 结果:OK!

下面哪种操作可以输出字符C(C的ASCII码值为67)。()

A. putchar(67);
B. putchar('C');
C. putchar('\103');
D. putchar('\x43');

沉淀滴定法的分类是以()作为依据;

A. 卤化银的溶解度不同
B. 卤化银的分子量不同
C. 卤化银的沉淀形式不同
D. 所用的指示剂不同

用佛尔哈德法测定Ag+离子时,如果滴定过程中不剧烈摇晃,会使分析结果()。

A. 偏高
B. 偏低
C. 无影响
D. 忽高忽低

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