【简答题】It is to expect young children to
sit quietly that long. (realistic)
【单选题】It is to expect the common man to know everything about germs ( 病菌,细菌 ).
【单选题】下列试剂中,可用直接法配制标准溶液的是( )
【判断题】信息论、控制论、系统论是现代教育技术取得优化的教育效果的重要理论,它们各自独立地支撑着教育技术理论基础。
【单选题】下列试剂中,可用直接法配制标准溶液的是( )
【单选题】下列试剂中,可用直接法配制标准溶液的是:
【单选题】It is to expect the common man to know everything about germs.
【简答题】数字修约规则中,在拟舍弃的数字中,保留数后面第一个数字等于5,5后面无数字或全部为零时,根据保留数的末位数字进行修约,修约的规则是_
【单选题】It is naive to expect that any society can resolve all the social problems it is faced with _______ .