题目

 Some years ago, SARS broke out in the mainland of China,   61   (cause) some people to be killed or nearly got close to death.   62   severe was the situation that there was no time to debate who was   63   (blame). The most important thing for the government to do was find out the cause of this   64   (dead) disease. They invited all the top experts in this field to have a discussion and quite a few suggestions   65   (put) forward. Some of the top experts picked out those suggestions and tested them to see whether they were available. Doctor Zhong Nanshan chose 下列关于误差的说法中,正确的是（    ） A、测量时出现了误差,则说明一定出现了错误 B、测量时,多测量几次取平均值可以减小误差 C、误差是由于操作不规范造成的 D、改进实验方法,采用精密仪器,去测量长度,可消除误差